Hex Lags | McMaster-Carr

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System of Measurement

Screw Size

Length

Finish

Hot-Dipped Galvanized

Fastener Head Type

Material

Threading

Tip Type

Head Width

For Use In

Thread Length

Head Height

Thread Size

Specifications Met

Approximate Threads per Inch

4 1/2

REACH

Compliant

DFARS Specialty Metals

Exempt

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

Compliant

Export Control Classification Number (ECCN)

Thread Pitch

Performance

Flange Diameter

452 Products

Fastener Head Type

Flanged

A flange spreads pressure around a wide area to reduce damage

24 products

Performance

Chemical Resistant

Won't degrade from chemically treated wood

70 products

Performance

Corrosion Resistant

Resist corrosion from moisture, chemicals, and harsh weather

241 products

Steel Hex Head Wood Screws

Often used on posts and beams, the coarse threads on these screws dig in for a firm hold. The hex head's six contact points keep sockets in place to avoid slipping and stripping the drive. To tighten, use a wrench or six-point hex socket. Also known as lag bolts.

Drill a pilot hole slightly smaller than the screw to prevent splitting. Length is measured from under the head.

Black-Oxide Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

Black-Zinc-Plated Steel—The dark zinc plating withstands occasional exposure to moisture while creating a finished look.

Hot-Dipped Galvanized Steel—Combines the strength of steel with the corrosion resistance of stainless steel. These screws are an economical alternative to 18-8 stainless steel in wet and outdoor environments. You can use them with chemically treated wood, such as ACQ-treated (arsenic-free) lumber, but they won't hold up to salt water.

	Lg.	Head Ht.	Approx. Threads per In.	Threading	Tapping Method	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Steel







				1/4"

				1"	0.172"	10	Fully Threaded	Thread Forming	ASME B18.2.1	25	95452A100	000000


				1 1/4"	0.172"	10	Fully Threaded	Thread Forming	ASME B18.2.1	10	95452A101	0000
				1 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	95452A102	0000
				1 3/4"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	95452A103	0000
				2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	95452A104	0000
				2 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	95452A105	00000
				3"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	95452A106	00000
				3 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A107	0000
				4"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A108	0000
				4 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A109	00000
				5"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A110	0000


				5 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A111	0000
				6"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A112	0000




						5/16"

						1"	0.219"	9	Fully Threaded	Thread Forming	ASME B18.2.1	10	95452A113	0000


						1 1/4"	0.219"	9	Fully Threaded	Thread Forming	ASME B18.2.1	10	95452A114	0000
						1 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	95452A115	0000
						1 3/4"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	95452A116	0000
						2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A117	0000
						2 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A118	0000
						3"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A119	0000
						3 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A120	0000
						4"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A121	0000
						4 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A122	0000
						5"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A123	0000


						5 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A124	0000
						6"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A125	0000




								3/8"

								1"	0.25"	7	Fully Threaded	Thread Forming	ASME B18.2.1	10	95452A126	0000


								1 1/4"	0.25"	7	Fully Threaded	Thread Forming	ASME B18.2.1	10	95452A127	0000
								1 1/2"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A128	0000
								1 3/4"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A129	0000
								2"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A130	0000
								2 1/2"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A131	0000
								3"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A132	0000
3 1/2"								0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A133	0000
4"	0.25"							7	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A134	0000
4 1/2"	0.25"							7	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A135	0000
5"	0.25"							7	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A136	0000


5 1/2"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	1	95452A137	00000
6"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	1	95452A138	0000




		1/2"

		1 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A139	00000


		2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	5	95452A140	00000
		2 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A141	0000
		3"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A142	0000
		3 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A143	0000
		4"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A144	0000
		4 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A145	0000
		5"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A146	0000
		5 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A147	0000
		6"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A148	0000
		8"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A149	00000


		10"	0.344"	6				Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A150	00000
		12"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	95452A151	00000




				5/8"

				2"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A152	0000


				2 1/2"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A153	0000
				3"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A154	0000
				4"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A155	0000
				4 1/2"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A156	0000
				5"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A157	00000
				5 1/2"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A158	00000
				6"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A159	00000




								3/4"

						2 1/2"		0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A163	00000


						3"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A164	0000
						3 1/2"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A165	00000
						4"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A166	00000
						5"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A168	00000
						6"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A169	00000
						8"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	95452A170	00000


						Zinc-Plated Steel







										1/4"

1"										0.172"	10	Fully Threaded	Thread Forming	ASME B18.2.1	100	91478A542	00000


1 1/4"	0.172"									10	Fully Threaded	Thread Forming	ASME B18.2.1	100	91478A544	00000
1 1/2"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	100	91478A546	00000
1 3/4"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	100	91478A548	00000
2"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	100	91478A550	00000
2 1/2"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	100	91478A552	00000
3"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A554	00000
3 1/2"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A556	00000
4"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A558	00000
5"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A562	00000
6"	0.172"									10	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A566	00000




										5/16"

										1"	0.219"	9	Fully Threaded	Thread Forming	ASME B18.2.1	100	91478A583	00000


										1 1/4"	0.219"	9	Fully Threaded	Thread Forming	ASME B18.2.1	100	91478A585	00000
		1 1/2"								0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	100	91478A587	00000
		1 3/4"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A588	00000
		2"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A591	00000
		2 1/2"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A593	00000
		3"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A595	00000
		3 1/2"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A597	00000
		4"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A599	00000
		5"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A603	00000
		6"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A607	00000




										3/8"

										1"	0.25"	7	Fully Threaded	Thread Forming	ASME B18.2.1	50	91478A624	00000


				1 1/4"	0.25"					7	Fully Threaded	Thread Forming	ASME B18.2.1	50	91478A626	00000
				1 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A628	00000
				1 3/4"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A630	00000
				2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	50	91478A632	00000
				2 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A634	00000
				3"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A636	00000
				3 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A638	00000
				4"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A640	00000
				4 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A642	00000
				5"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A644	00000


				6"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A648	0000
				7"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A650	00000
				8"	0.25"	7				Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A652	0000




						1/2"

						1 1/2"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A712	00000


						2"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	25	91478A720	00000
						2 1/2"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A722	0000
						3"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A724	00000
						3 1/2"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A726	00000
						4"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A728	0000
						4 1/2"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A730	00000
						5"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A732	00000
						6"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A736	00000
						7"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	10	91478A738	00000
						8"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A740	00000




5/8"

3"	0.422"							5	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A806	0000


4"	0.422"							5	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A810	00000
5"	0.422"							5	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A814	00000
7"	0.422"							5	Partially Threaded	Thread Forming	ASME B18.2.1	1	91478A820	0000




								3/4"

								3"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A840	00000


								4"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A842	00000
								5"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	5	91478A843	00000
								6"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	91478A844	0000




								M5 × 2.2 mm

								20 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	100	97498A111	0000


								25 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	100	97498A112	00000
								30 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	100	97498A113	00000
								35 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	50	97498A114	0000
								40 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	50	97498A115	00000
								45 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	50	97498A116	0000
								50 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	50	97498A117	00000
								60 mm	3.5 mm	—	Partially Threaded	Thread Forming	DIN 571	50	97498A118	00000




										M6 × 2.6 mm

										20 mm	4 mm	—	Partially Threaded	Thread Forming	DIN 571	50	97498A119	0000


				25 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	50	97498A121	0000
				30 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	50	97498A122	00000
				35 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	50	97498A123	00000
				40 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	50	97498A124	00000
				45 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	50	97498A125	00000
				50 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	25	97498A126	00000
				55 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	25	97498A127	0000
				60 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	25	97498A128	0000
				70 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	25	97498A129	00000
				80 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	25	97498A131	00000


				90 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	25	97498A132	00000
				100 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	25	97498A133	00000
				120 mm	4 mm					—	Partially Threaded	Thread Forming	DIN 571	10	97498A134	0000




						M8 × 3.6 mm

						25 mm	5.5 mm			—	Partially Threaded	Thread Forming	DIN 571	25	97498A135	0000


						30 mm	5.5 mm			—	Partially Threaded	Thread Forming	DIN 571	25	97498A136	0000
						35 mm	5.5 mm			—	Partially Threaded	Thread Forming	DIN 571	25	97498A137	0000
						40 mm	5.5 mm			—	Partially Threaded	Thread Forming	DIN 571	25	97498A138	00000
						45 mm	5.5 mm			—	Partially Threaded	Thread Forming	DIN 571	25	97498A139	00000
						50 mm	5.5 mm			—	Partially Threaded	Thread Forming	DIN 571	25	97498A141	00000
55 mm						5.5 mm	—			Partially Threaded	Thread Forming	DIN 571	25	97498A142	00000
60 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A143	0000
70 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A144	0000
80 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A145	0000
90 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A146	0000


100 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A147	0000
120 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A148	00000
130 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A149	00000
140 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	10	97498A151	00000
160 mm	5.5 mm					—	Partially Threaded			Thread Forming	DIN 571	5	97498A152	0000




		M10 × 4.5 mm

		30 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A153	0000


		35 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A154	0000
		40 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A155	0000
		45 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A156	0000
		50 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A157	0000
		55 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A158	0000
		60 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A159	0000
		70 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A161	00000
		80 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A162	00000
		90 mm	7 mm			—	Partially Threaded			Thread Forming	DIN 571	10	97498A163	00000
		100 mm	7 mm			—	Partially Threaded	Thread Forming		DIN 571	10	97498A164	00000


		120 mm	7 mm			—	Partially Threaded	Thread Forming	DIN 571	5	97498A165	0000
		140 mm	7 mm			—	Partially Threaded	Thread Forming	DIN 571	5	97498A166	0000
		160 mm	7 mm			—	Partially Threaded	Thread Forming	DIN 571	5	97498A167	0000
		180 mm	7 mm			—	Partially Threaded	Thread Forming	DIN 571	5	97498A168	0000
		200 mm	7 mm			—	Partially Threaded	Thread Forming	DIN 571	1	97498A169	0000




						M12 × 5 mm

						40 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	10	97498A171	00000


						45 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	10	97498A172	0000
						50 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	10	97498A173	00000
						60 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	5	97498A174	0000
						70 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	5	97498A175	0000
						80 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	5	97498A176	0000
						90 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	5	97498A177	0000
				100 mm		8 mm	—	Partially Threaded	Thread Forming	DIN 571	5	97498A178	00000
				120 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	5	97498A179	00000
				140 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	5	97498A181	00000
				160 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A182	0000


				180 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A183	0000
				200 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A184	0000
				220 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A185	0000
				240 mm	8 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A186	0000




						M16 × 6 mm

						60 mm	10 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A187	0000


						70 mm	10 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A188	0000
						80 mm	10 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A189	0000
						90 mm	10 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A191	0000
						100 mm	10 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A192	0000
						120 mm	10 mm	—	Partially Threaded	Thread Forming	DIN 571	1	97498A193	0000


Black-Zinc-Plated Steel







								1/4"

								1"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	100	92371A412	00000


								1 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	50	92371A416	00000
								2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	50	92371A420	00000
								2 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	50	92371A424	00000
								3"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	50	92371A428	00000




										5/16"

										1 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	50	92371A521	00000


		2"								0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	50	92371A525	00000
		2 1/2"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	50	92371A529	00000
		3"	0.219"							9	Partially Threaded	Thread Forming	ASME B18.2.1	25	92371A533	00000




										3/8"

										1 1/2"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	25	92371A571	00000


										2"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	25	92371A574	00000
										2 1/2"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92371A578	0000
										3"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	25	92371A581	00000
										4"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92371A585	0000


										Hot-Dipped Galvanized Steel







					1/4"

					1"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	100	94048A212	00000


					1 1/4"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	100	94048A215	00000
					1 1/2"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	100	94048A218	00000
					2"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	100	94048A221	00000
					2 1/2"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A224	00000
					3"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A227	00000
					3 1/2"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A230	00000
					4"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A233	00000
					4 1/2"								0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	25	94048A236	00000
5"					0.172"								10	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	25	94048A239	00000
5 1/2"	0.172"				10								Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	25	94048A411	00000


6"	0.172"				10								Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	25	94048A245	00000




					5/16"

					1"	0.219"	9						Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A248	00000


					1 1/4"	0.219"	9						Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A251	00000
					1 1/2"	0.219"	9						Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A254	00000
					2"	0.219"	9						Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A257	00000
					2 1/2"	0.219"	9						Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A260	00000
					3"	0.219"	9						Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A263	00000
					3 1/2"	0.219"	9						Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	25	94048A266	00000
					4"	0.219"	9	Partially Threaded					Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	25	94048A269	00000
					4 1/2"	0.219"	9	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	25	94048A274	00000
					5"	0.219"	9	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	25	94048A275	00000
					6"	0.219"	9	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	25	94048A278	00000




							3/8"

		1"					0.25"	7	Partially Threaded				Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	50	94048A412	00000


		1 1/4"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	50	94048A281	00000
		1 1/2"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	50	94048A284	00000
		1 3/4"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	50	94048A287	00000
		2"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	50	94048A290	00000
		2 1/2"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	25	94048A293	00000
		3"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	25	94048A296	00000
		3 1/2"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	25	94048A299	00000
		4"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	25	94048A302	00000
		4 1/2"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	10	94048A305	00000
		5"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	10	94048A308	00000


		5 1/2"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	10	94048A413	00000
		6"	0.25"				7	Partially Threaded	Thread Forming				ASME B18.2.1, ASTM A307, SAE J429	10	94048A314	00000
		7"	0.25"				7	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429			10	94048A317	00000
		8"	0.25"				7	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10		94048A320	00000
		9"	0.25"				7	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5		94048A414	00000
		10"	0.25"	7			Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A324		00000
		12"	0.25"	7			Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A415		00000




				1/2"

				2"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10	94048A329	0000


				2 1/2"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10	94048A332	00000
				3"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10	94048A335	00000
				3 1/2"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10	94048A338	00000
				4"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10	94048A341	00000
				4 1/2"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10	94048A344	00000
				5"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	10	94048A347	00000
				5 1/2"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A416	00000
				6"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A353	00000
				7"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A356	00000
				8"			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A359	00000


9"	0.344"			6			Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A417	0000
10"	0.344"			6			Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A363	0000
12"	0.344"			6			Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A366	0000




				5/8"

				2 1/2"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A418	00000


				3"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A374	00000
				4"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A380	00000
				4 1/2"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A421	00000
				5"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	94048A386	00000
				6"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A389	0000
				7"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A392	0000
				8"			0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A396	0000
				10"	0.422"		5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A399	0000
				12"	0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A402	00000
				16"	0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A423	00000




						3/4"

						4"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A404	0000


						5"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A407	0000
						6"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A410	0000
						7"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A420	0000
						8"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A430	00000
						10"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A440	00000
						12"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	94048A450	00000

Stainless Steel Hex Head Wood Screws

With coarse threads that dig in, these screws secure posts and beams in outdoor and wet environments. They won't degrade from moisture or chemically treated wood, such as ACQ-treated (arsenic-free) lumber. The hex head's six contact points keep sockets in place to avoid slipping and stripping on the drive. To tighten, use a wrench or six-point hex socket. Also known as lag bolts.

Drill a pilot hole slightly smaller than the screw to prevent splitting. Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Lg.	Head Ht.	Approx. Threads per In.	Threading	Tapping Method	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				1/4"

				1"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	50	92351A542	000000


				1 1/4"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A544	0000
				1 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A546	00000
				1 3/4"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A548	00000
				2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A550	00000
				2 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A552	00000
				3"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A554	0000
				3 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A556	0000
				4"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A558	0000
				4 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A559	00000
				5"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A562	00000


				5 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A111	00000
				6"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A566	00000
				8"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A116	00000
				10"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A117	00000




						5/16"

						1"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A583	0000


						1 1/4"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A585	00000
						1 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	25	92351A587	00000
						1 3/4"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A588	0000
						2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A591	0000
						2 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A593	0000
						3"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A595	0000
						3 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A597	0000
						4"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A599	00000
						4 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A601	00000
						5"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A603	0000


						5 1/2"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A112	0000
						6"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A607	0000
						8"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A118	00000
						10"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A119	00000




								3/8"

								1"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A624	0000


								1 1/4"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A626	0000
								1 1/2"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A628	0000
1 3/4"								0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A630	00000
2"	0.25"							7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A632	00000
2 1/2"	0.25"							7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A634	00000
3"	0.25"							7	Partially Threaded	Thread Forming	ASME B18.2.1	10	92351A636	00000
3 1/2"	0.25"							7	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A638	0000
4"	0.25"	7						Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A640	0000
4 1/2"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	5	92351A642	00000
5"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	5	92351A644	00000


5 1/2"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	5	92351A113	00000
6"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	5	92351A648	00000
7"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	1	92351A656	00000
8"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	1	92351A662	00000
10"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	1	92351A671	0000
12"	0.25"	7	Partially Threaded					Thread Forming	ASME B18.2.1	1	92351A121	00000




		1/2"

		1 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A712	0000


		1 3/4"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A114	0000
		2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A720	0000
		2 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A722	0000
		3"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	5	92351A724	00000
		3 1/2"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A726	0000
		4"	0.344"					6	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A728	0000
		4 1/2"	0.344"	6				Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A730	0000
		5"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	92351A732	0000
		5 1/2"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	92351A115	0000
		6"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	92351A736	0000


		7"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	92351A740	00000
		8"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	92351A746	00000
		10"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	92351A754	0000
		12"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	92351A757	0000




				5/8"

				2"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A122	0000


				2 1/2"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A801	00000
				3"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A807	00000
				3 1/2"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A123	0000
				4"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A819	00000
				5"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A825	00000
				6"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A831	00000
				7"	0.422"			5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A837	00000
				8"	0.422"	5		Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A843	00000
				10"	0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A849	00000
				12"	0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A857	00000


				16"	0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A127	00000




						3/4"

						3"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A896	00000


						4"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A903	00000
						5"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A911	00000
						6"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A919	00000
						7"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A927	00000
						8"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A935	00000
						10"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A943	00000
						12"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	92351A951	00000


						316 Stainless Steel







								1/4"

								1"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	25	90123A113	0000


								1 1/4"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A116	0000
								1 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A119	0000
								2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A124	0000
								2 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A127	0000
								3"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A131	0000
								3 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A139	0000
								4"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A146	0000
								4 1/2"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A154	0000
								5"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A161	0000
								6"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A172	0000




			5/16"

			1"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A206	0000


			1 1/4"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A211	0000
			1 1/2"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A227	0000
			2"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A234	0000
			2 1/2"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A238	0000
			3"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A242	0000
			3 1/2"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A247	0000
			4"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A256	0000
			4 1/2"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A261	0000
			5"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A269	0000
			6"						0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A278	0000




										3/8"

										1"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A340	0000


				1 1/4"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A345	0000
				1 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	10	90123A374	0000
				2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A377	0000
				2 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A379	0000
				3"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	5	90123A383	0000
				3 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A386	0000
				4"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A389	0000
				4 1/2"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A393	0000
				5"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A401	0000
				6"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A407	0000


				7"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A413	0000
				8"	0.25"					7	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A417	00000
10"				0.25"	7					Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A419	0000




				1/2"

				1 1/2"	0.344"	6				Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A421	0000


				2"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A425	0000
				2 1/2"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A429	0000
				3"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A436	0000
				3 1/2"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A439	0000
				4"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A443	0000
				4 1/2"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A449	0000
				5"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A457	0000
				6"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A465	0000
				7"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A473	00000
				8"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A481	00000


				10"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A486	00000
				12"	0.344"	6	Partially Threaded			Thread Forming	ASME B18.2.1	1	90123A489	00000




					5/8"

					2 1/2"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A506	00000


					3"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A514	00000
					4"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A522	00000
					5"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A530	00000
					6"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A537	00000
					7"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A545	00000
					8"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A553	00000
					10"	0.422"	5	Partially Threaded		Thread Forming	ASME B18.2.1	1	90123A561	00000




						3/4"

						4"	0.5"	4 1/2		Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A634	00000


						5"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A642	00000
						6"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A650	00000
						8"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A665	00000
						12"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	90123A681	00000

Steel Flanged Hex Head Wood Screws

A built-in flange protects surfaces from splitting and pull-through by spreading pressure over a large area. These screws are often used to secure wooden posts and beams because their coarse threads dig in. The hex head's six contact points keep sockets in place to avoid slipping and stripping the drive. To tighten, use a wrench or six-point hex socket. Also known as lag bolts.

Drill a pilot hole slightly smaller than the screw to prevent splitting. Head height includes the flange. Length is measured from under the flange.

	Approx. Threads per In.	Threading	Tapping Method	Specs. Met	Pkg. Qty.		Pkg.
Hot-Dipped Galvanized Steel







	1/4"

	1"	0.28"	0.56"	10	Fully Threaded	Thread Forming	ASTM A153	100	95526A100	000000


	1 1/2"	0.28"	0.56"	10	Partially Threaded	Thread Forming	ASTM A153	50	95526A125	00000
	2"	0.28"	0.56"	10	Partially Threaded	Thread Forming	ASTM A153	50	95526A150	00000
	2 1/2"	0.28"	0.56"	10	Partially Threaded	Thread Forming	ASTM A153	50	95526A175	00000
	3"	0.28"	0.56"	10	Partially Threaded	Thread Forming	ASTM A153	50	95526A200	00000




			5/16"

			1"	0.32"	0.68"	9	Fully Threaded	Thread Forming	ASTM A153	50	95526A325	00000


			1 1/2"	0.32"	0.68"	9	Partially Threaded	Thread Forming	ASTM A153	50	95526A350	00000
			2"	0.32"	0.68"	9	Partially Threaded	Thread Forming	ASTM A153	50	95526A375	00000
			2 1/2"	0.32"	0.68"	9	Partially Threaded	Thread Forming	ASTM A153	25	95526A400	00000




					3/8"

					1 1/2"	0.39"	0.81"	7	Partially Threaded	Thread Forming	ASTM A153	25	95526A500	00000


					2"	0.39"	0.81"	7	Partially Threaded	Thread Forming	ASTM A153	25	95526A525	00000
					2 1/2"	0.39"	0.81"	7	Partially Threaded	Thread Forming	ASTM A153	25	95526A550	00000
					3"	0.39"	0.81"	7	Partially Threaded	Thread Forming	ASTM A153	25	95526A575	00000
					4"	0.39"	0.81"	7	Partially Threaded	Thread Forming	ASTM A153	10	95526A600	00000
					5"	0.39"	0.81"	7	Partially Threaded	Thread Forming	ASTM A153	5	95526A601	0000
					6"	0.39"	0.81"	7	Partially Threaded	Thread Forming	ASTM A153	5	95526A602	00000

Stainless Steel Flanged Hex Head Wood Screws

A built-in flange protects surfaces from splitting and pull-through by spreading pressure over a large area. These screws won't rust, so you can use their coarse threads to secure posts and beams outdoors. They also won't degrade from chemically treated wood, such as ACQ-treated (arsenic-free) lumber. The hex head's six contact points keep sockets in place to avoid slipping and stripping the drive. To tighten, use a wrench or six-point hex socket. Also known as lag bolts.

Drill a pilot hole slightly smaller than the screw to prevent splitting. Head height includes the flange. Length is measured from under the flange.

316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Approx. Threads per In.	Threading	Tapping Method	Pkg. Qty.		Pkg.
316 Stainless Steel







	1/4"

	4"	0.21"	0.45"	13	Partially Threaded	Thread Forming	10	91428A500	000000


	6"	0.21"	0.45"	13	Partially Threaded	Thread Forming	5	91428A600	00000
	8"	0.21"	0.45"	13	Partially Threaded	Thread Forming	1	91428A700	0000




			3/8"

			4"	0.275"	0.66"	7	Partially Threaded	Thread Forming	1	91428A111	0000


			5"	0.275"	0.66"	7	Partially Threaded	Thread Forming	1	91428A121	0000
			6"	0.275"	0.66"	7	Partially Threaded	Thread Forming	1	91428A131	0000
			8"	0.275"	0.66"	7	Partially Threaded	Thread Forming	1	91428A141	00000
			10"	0.275"	0.66"	10	Partially Threaded	Thread Forming	1	91428A800	00000