10" Wood Screws | McMaster-Carr

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System of Measurement

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Fastener Head Type

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Finish

Hot-Dipped Galvanized

Zinc Plated

Thread Size

3/8"-16

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Partially Threaded

Threaded on Both Ends

Thread Length

2 1/2"

6.667"

Approximate Threads per Inch

For Use In

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Head Width

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

Yes

REACH

Compliant

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Compliant

DFARS Specialty Metals

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Not Compliant

Export Control Classification Number (ECCN)

Performance

Tapping Method

Specifications Met

Head Height

Thread Type

Tensile Strength

Diameter

21 Products

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.

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







			1/4"

			10"	0.172"	10	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	000000




					5/16"

					10"	0.219"	9	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	00000




							3/8"

							10"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	0000




									1/2"

									10"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	0000




											5/8"

											10"	0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	00000




													3/4"

													10"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	00000


													316 Stainless Steel







																	3/8"

																	10"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	0000




																			1/2"

10"																			0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	00000




	5/8"

	10"	0.422"																	5	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	00000

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.

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.

	Threading	Tapping Method	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Steel







	1/2"

	10"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1	1	000000000	000000


	Hot-Dipped Galvanized Steel







					3/8"

					10"	0.25"	7	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	5	000000000	00000




							1/2"

							10"	0.344"	6	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	000000000	0000




									5/8"

									10"	0.422"	5	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	000000000	0000




											3/4"

											10"	0.5"	4 1/2	Partially Threaded	Thread Forming	ASME B18.2.1, ASTM A307, SAE J429	1	000000000	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







	3/8"

	10"	0.275"	0.66"	10	Partially Threaded	Thread Forming	1	000000000	000000

Thread-Mount Studs for Wood

Also known as hanger bolts, use these studs to hang, mount, and fasten parts to wood structures. Install them with a stud driver, or create wrench flats by threading two nuts onto the stud and jamming them together.

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

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

	(A)		(B)
	Screw Size	Thread Lg.	Thread Size	Thread Lg.	Lg.	Tensile Strength	Hardness	Pkg. Qty.		Pkg.
Black-Oxide Steel



		3/8"	3"	3/8"-16	2 1/2"	10"	Not Rated	Not Rated	1	000000000	000000


		Zinc-Plated Steel



				3/8"	3"	3/8"-16	2 1/2"	10"	Not Rated	Not Rated	1	000000000	0000

Flexible Hot Glue Sticks

Remaining flexible after curing, these glue sticks accommodate joint movement. All are FDA compliant 21 CFR 175.105 and suitable for food packaging.

Lg.	Begins to Harden, sec.	Reaches Full Strength, hr.	Application Temp. Range, ° F	Consistency	Viscosity, cP	Elongation	Color	Food Industry Std.	For Joining	Approx. No. of Sticks per lb.	Choose a Weight, lb.



7/16"	10"	60	24	350 to 390	Thick Liquid	5,375	1,300%	Clear	FDA Compliant 21 CFR 175.105	Ceramic, Fabric, Glass, Masonry, Metal, Plastic, Rubber, Wood	18	1 , 5 , 25	0000000

Hot Glue Sticks

When heated, these glue sticks melt and quickly begin to harden. Use them to seal packaging and form other low- to medium-strength bonds. 3M glue sticks work only with 3M glue guns.

Adhesives that take longer to harden are suited for applications that require some repositioning, because the longer open times allow for more adjustment. For high-volume applications, adhesives with a lower viscosity flow faster than other hot-melt adhesives.

	For 3M Gun Model No.	Dia.	Lg.	Begins to Harden, sec.	Reaches Full Strength, hr.	Application Temp. Range, ° F	Consistency	Viscosity, cP	Elongation	Color	Food Industry Std.	For Joining	Approx. No. of Sticks per lb.	Choose a Weight, lb.
3M Scotch-Weld



	3750	AE II	1/2"	10"	30	24	350 to 385	Thick Liquid	1,900	400%	Beige	—	Wood	14	1 , 11	0000000


	3750	AE II	1/2"	10"	40	24	350 to 385	Thick Liquid	1,900	400%	Clear	—	Wood	14	1 , 11	0000000


	Other Hot Glue



			—	—	5/8"	10"	60	24	250 to 380	Thick Liquid	4,400	750%	Clear	FDA Compliant 21 CFR 175.105	Plastic, Rubber, Wood	10	5 , 25	0000000