Blue Dyed Screws | McMaster-Carr

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Color

Blue

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Length

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Fastener Strength Grade/Class

Thread Pitch

Threading

Socket Head Profile

Material

Drive Style

Head Diameter

Head Height

Specifications Met

Thread Direction

Thread Type

Thread Spacing

Tensile Strength

100,000 psi or greater

Drive Size

Tip Type

RoHS

REACH

DFARS Specialty Metals

Not Compliant

Export Control Classification Number (ECCN)

EAR99

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

Yes

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339 Products

Steel Socket Head Screws


Fully Threaded	Partially Threaded

Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.

Length is measured from under the head.

Blue-Dyed Zinc-Plated Alloy Steel—The distinctive blue color makes it easy to tell these metric-sized screws apart from inch screws.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Fastener Strength Grade/Class	Pkg. Qty.		Pkg.
Blue-Dyed Zinc-Plated Alloy Steel







				M3 × 0.5 mm

				5	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A101	000000


				6	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A102	00000
				8	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A103	00000
				10	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A104	00000
				12	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A105	00000
				14	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A106	00000
				16	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A107	00000
				18	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A108	00000
				20	5.5	3	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A109	0000
				25	5.5	3	Partially Threaded	Coarse	170,000	Class 12.9	50	91502A110	00000
				30	5.5	3	Partially Threaded	Coarse	170,000	Class 12.9	50	91502A111	00000


				35	5.5	3	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A112	00000
				40	5.5	3	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A113	00000
				50	5.5	3	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A114	00000




						M4 × 0.7 mm

						5	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A121	00000


						6	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A122	00000
						8	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A123	00000
						10	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A124	00000
						12	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A125	00000
						14	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A126	00000
						16	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A127	00000
						18	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A128	00000
						20	7	4	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A129	00000
						25	7	4	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A130	00000
						30	7	4	Partially Threaded	Coarse	170,000	Class 12.9	50	91502A131	00000


						35	7	4	Partially Threaded	Coarse	170,000	Class 12.9	50	91502A132	00000
						40	7	4	Partially Threaded	Coarse	170,000	Class 12.9	50	91502A133	00000
						45	7	4	Partially Threaded	Coarse	170,000	Class 12.9	50	91502A134	00000
						50	7	4	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A135	00000
						60	7	4	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A136	00000
						80	7	4	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A137	00000




								M5 × 0.8 mm

								6	8.5	5	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A141	00000


								8	8.5	5	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A142	00000
10								8.5	5	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A143	00000
12	8.5							5	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A144	00000
14	8.5							5	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A145	00000
16	8.5							5	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A146	00000
18	8.5							5	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A147	00000
20	8.5	5						Fully Threaded	Coarse	170,000	Class 12.9	100	91502A148	00000
25	8.5	5	Fully Threaded					Coarse	170,000	Class 12.9	100	91502A149	00000
30	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	50	91502A150	00000
35	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	50	91502A151	00000


40	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	50	91502A152	00000
45	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	50	91502A153	00000
50	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	50	91502A154	00000
60	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	25	91502A155	00000
70	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	25	91502A156	00000
80	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	25	91502A157	00000
90	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	10	91502A158	0000
100	8.5	5	Partially Threaded					Coarse	170,000	Class 12.9	10	91502A159	00000




		M6 × 1 mm

		8	10					6	Fully Threaded	Coarse	170,000	Class 12.9	100	91502A161	00000


		10	10					6	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A162	00000
		12	10					6	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A163	0000
		14	10	6				Fully Threaded	Coarse	170,000	Class 12.9	50	91502A164	00000
		16	10	6	Fully Threaded			Coarse	170,000	Class 12.9	100	91502A165	00000
		18	10	6	Fully Threaded			Coarse	170,000	Class 12.9	50	91502A166	00000
		20	10	6	Fully Threaded			Coarse	170,000	Class 12.9	50	91502A167	00000
		22	10	6	Fully Threaded			Coarse	170,000	Class 12.9	50	91502A168	00000
		25	10	6	Fully Threaded			Coarse	170,000	Class 12.9	50	91502A169	00000
		30	10	6	Fully Threaded			Coarse	170,000	Class 12.9	50	91502A170	00000
		35	10	6	Partially Threaded			Coarse	170,000	Class 12.9	50	91502A171	00000


		40	10	6	Partially Threaded			Coarse	170,000	Class 12.9	50	91502A172	00000
		45	10	6	Partially Threaded			Coarse	170,000	Class 12.9	50	91502A173	00000
		50	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A174	00000
		55	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A175	00000
		60	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A176	00000
		65	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A177	00000
		70	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A178	00000
		75	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A179	00000
		80	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A180	00000
		90	10	6	Partially Threaded			Coarse	170,000	Class 12.9	25	91502A181	00000


		100	10	6	Partially Threaded			Coarse	170,000	Class 12.9	10	91502A182	00000
		110	10	6	Partially Threaded			Coarse	170,000	Class 12.9	10	91502A183	00000
		120	10	6	Partially Threaded			Coarse	170,000	Class 12.9	10	91502A184	00000




				M8 × 1.25 mm

				10	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A191	00000


				12	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A192	00000
				16	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A193	00000
				18	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A194	00000
				20	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A195	00000
				22	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A196	00000
				25	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A197	00000
				30	13	8	Fully Threaded	Coarse	170,000	Class 12.9	50	91502A198	00000
				35	13	8	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A199	0000
				40	13	8	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A401	00000
				45	13	8	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A201	00000


				50	13	8	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A202	00000
				55	13	8	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A203	00000
				60	13	8	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A204	00000
				65	13	8	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A205	0000
				70	13	8	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A206	0000
				75	13	8	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A207	0000
				80	13	8	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A208	0000
				90	13	8	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A209	0000
				100	13	8	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A210	00000
110				13	8	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A211	00000


120	13			8	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A212	00000




				M10 × 1.5 mm

				12	16	10	Fully Threaded	Coarse	170,000	Class 12.9	25	91502A221	00000


				16	16	10	Fully Threaded	Coarse	170,000	Class 12.9	25	91502A222	00000
				20	16	10	Fully Threaded	Coarse	170,000	Class 12.9	25	91502A223	00000
				25	16	10	Fully Threaded	Coarse	170,000	Class 12.9	25	91502A224	00000
				30	16	10	Fully Threaded	Coarse	170,000	Class 12.9	25	91502A225	00000
				35	16	10	Fully Threaded	Coarse	170,000	Class 12.9	25	91502A226	00000
				40	16	10	Fully Threaded	Coarse	170,000	Class 12.9	25	91502A227	00000
				45	16	10	Partially Threaded	Coarse	170,000	Class 12.9	25	91502A228	00000
				50	16	10	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A229	0000
				55	16	10	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A230	0000
				60	16	10	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A231	00000


				65	16	10	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A232	00000
				70	16	10	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A233	00000
				80	16	10	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A234	00000
				90	16	10	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A235	00000
				100	16	10	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A236	0000
				110	16	10	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A237	00000
				120	16	10	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A238	0000
				150	16	10	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A239	00000




			M12 × 1.75 mm

			16		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A241	00000


			20		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A242	0000
			25		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A243	0000
			30		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A244	0000
			35		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A245	0000
			40		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A246	00000
			45		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A247	00000
			50		18	12	Fully Threaded	Coarse	170,000	Class 12.9	10	91502A248	00000
			55		18	12	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A249	00000
			60		18	12	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A250	00000
			65		18	12	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A251	00000


			70		18	12	Partially Threaded	Coarse	170,000	Class 12.9	10	91502A252	00000
			80		18	12	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A253	0000
			90		18	12	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A254	00000
			100		18	12	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A255	00000
			110		18	12	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A256	00000
			120		18	12	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A257	00000
			150		18	12	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A258	00000




						M14 × 2 mm

						30	21	14	Fully Threaded	Coarse	170,000	Class 12.9	5	91502A261	00000


35						21	14	Fully Threaded	Coarse	170,000	Class 12.9	5	91502A262	00000
40	21					14	Fully Threaded	Coarse	170,000	Class 12.9	5	91502A263	00000
50	21					14	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A264	00000
60	21					14	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A265	00000




						M16 × 2 mm

						25	24	16	Fully Threaded	Coarse	170,000	Class 12.9	5	91502A271	00000


						30	24	16	Fully Threaded	Coarse	170,000	Class 12.9	5	91502A272	00000
						35	24	16	Fully Threaded	Coarse	170,000	Class 12.9	5	91502A273	00000
						40	24	16	Fully Threaded	Coarse	170,000	Class 12.9	5	91502A274	00000
						45	24	16	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A275	00000
						50	24	16	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A276	00000
						60	24	16	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A277	00000
						70	24	16	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A278	00000
						80	24	16	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A279	00000
						100	24	16	Partially Threaded	Coarse	170,000	Class 12.9	5	91502A280	00000




								M20 × 2.5 mm

								40	30	20	Fully Threaded	Coarse	170,000	Class 12.9	1	91502A291	0000


		50		30				20	Fully Threaded	Coarse	170,000	Class 12.9	1	91502A292	0000
		60		30				20	Fully Threaded	Coarse	170,000	Class 12.9	1	91502A293	0000
		70		30				20	Fully Threaded	Coarse	170,000	Class 12.9	1	91502A294	0000
		80		30				20	Partially Threaded	Coarse	170,000	Class 12.9	1	91502A295	0000
		100		30				20	Partially Threaded	Coarse	170,000	Class 12.9	1	91502A296	0000




								M24 × 3 mm

								80	36	24	Partially Threaded	Coarse	170,000	Class 12.9	1	91502A301	00000


								90	36	24	Partially Threaded	Coarse	170,000	Class 12.9	1	91502A302	00000
								100	36	24	Partially Threaded	Coarse	170,000	Class 12.9	1	91502A303	00000

Steel Hex Head Screws


Fully Threaded	Partially Threaded

Our most popular hex head screws. These have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.

Length is measured from under the head.

High-Strength Fastener—Commonly used to fasten components in valves, pumps, motors, and other high-stress applications. These screws have a tensile strength of 125,000 to 160,000 psi.

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

Dyed Steel—The distinctive blue color makes it easy to tell these metric-sized screws apart from inch screws.

		Head, mm
	Lg., mm	Wd.	Ht.	Threading	Thread Spacing	Fastener Strength Grade/Class	Tensile Strength, psi	Pkg. Qty.		Pkg.
High-Strength Blue-Dyed Zinc-Plated Steel







				M5 × 0.8 mm

				12	8	3.7	Fully Threaded	Coarse	Class 10.9	150,000	50	90180A911	000000


				16	8	3.7	Fully Threaded	Coarse	Class 10.9	150,000	50	90180A912	00000
				20	8	3.7	Fully Threaded	Coarse	Class 10.9	150,000	50	90180A913	00000
				25	8	3.7	Fully Threaded	Coarse	Class 10.9	150,000	50	90180A914	00000




						M6 × 1 mm

						16	10	4	Fully Threaded	Coarse	Class 10.9	150,000	50	90180A611	00000


						20	10	4	Fully Threaded	Coarse	Class 10.9	150,000	50	90180A612	00000
						25	10	4	Fully Threaded	Coarse	Class 10.9	150,000	25	90180A613	0000
						30	10	4	Partially Threaded	Coarse	Class 10.9	150,000	25	90180A614	00000
						35	10	4	Partially Threaded	Coarse	Class 10.9	150,000	25	90180A615	00000
						40	10	4	Partially Threaded	Coarse	Class 10.9	150,000	25	90180A616	00000
						50	10	4	Partially Threaded	Coarse	Class 10.9	150,000	25	90180A617	00000




								M8 × 1.25 mm

								16	13	5.3	Fully Threaded	Coarse	Class 10.9	150,000	25	90180A618	00000


								20	13	5.3	Fully Threaded	Coarse	Class 10.9	150,000	25	90180A619	00000
								25	13	5.3	Fully Threaded	Coarse	Class 10.9	150,000	25	90180A621	00000
								30	13	5.3	Fully Threaded	Coarse	Class 10.9	150,000	25	90180A622	00000
								35	13	5.3	Partially Threaded	Coarse	Class 10.9	150,000	10	90180A623	0000
								40	13	5.3	Partially Threaded	Coarse	Class 10.9	150,000	10	90180A624	0000
								50	13	5.3	Partially Threaded	Coarse	Class 10.9	150,000	10	90180A625	00000
								60	13	5.3	Partially Threaded	Coarse	Class 10.9	150,000	10	90180A626	00000
								70	13	5.3	Partially Threaded	Coarse	Class 10.9	150,000	10	90180A627	00000
								80	13	5.3	Partially Threaded	Coarse	Class 10.9	150,000	10	90180A628	00000




										M8 × 1 mm

										20	13	5.5	Fully Threaded	Fine	Class 10.9	150,000	10	90180A915	00000


										25	13	5.5	Fully Threaded	Fine	Class 10.9	150,000	10	90180A916	00000
										30	13	5.5	Fully Threaded	Fine	Class 10.9	150,000	10	90180A917	00000




												M10 × 1.5 mm

20	17											6.4	Fully Threaded	Coarse	Class 10.9	150,000	10	90180A629	00000


25	17											6.4	Fully Threaded	Coarse	Class 10.9	150,000	10	90180A631	00000
30	17	6.4										Fully Threaded	Coarse	Class 10.9	150,000	10	90180A632	00000
35	17	6.4	Fully Threaded									Coarse	Class 10.9	150,000	10	90180A633	00000
40	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	10	90180A634	00000
50	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	5	90180A635	0000
60	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	5	90180A636	00000
70	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	5	90180A637	00000
75	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	5	90180A638	00000
80	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	5	90180A639	00000
90	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	5	90180A641	00000


100	17	6.4	Partially Threaded									Coarse	Class 10.9	150,000	1	90180A642	0000
120	17	6.4	Partially Threaded	Coarse								Class 10.9	150,000	1	90180A643	0000




		M10 × 1.25 mm

		20	17	6.6	Fully Threaded							Fine	Class 10.9	150,000	5	90180A918	0000


		25	17	6.6	Fully Threaded							Fine	Class 10.9	150,000	5	90180A919	00000
		35	17	6.6	Fully Threaded							Fine	Class 10.9	150,000	5	90180A921	00000
		40	17	6.6	Fully Threaded							Fine	Class 10.9	150,000	5	90180A922	00000
		45	17	6.6	Partially Threaded							Fine	Class 10.9	150,000	5	90180A923	00000




				M12 × 1.75 mm

				20	19	7.5	Fully Threaded					Coarse	Class 10.9	150,000	5	90180A644	0000


				25	19	7.5	Fully Threaded					Coarse	Class 10.9	150,000	5	90180A645	0000
				30	19	7.5	Fully Threaded					Coarse	Class 10.9	150,000	5	90180A646	0000
				35	19	7.5	Fully Threaded					Coarse	Class 10.9	150,000	5	90180A647	0000
				40	19	7.5	Fully Threaded					Coarse	Class 10.9	150,000	5	90180A648	00000
				45	19	7.5	Fully Threaded					Coarse	Class 10.9	150,000	5	90180A649	00000
				50	19	7.5	Partially Threaded					Coarse	Class 10.9	150,000	5	90180A651	00000
				60	19	7.5	Partially Threaded					Coarse	Class 10.9	150,000	5	90180A652	00000
				70	19	7.5	Partially Threaded					Coarse	Class 10.9	150,000	5	90180A653	00000
				80	19	7.5	Partially Threaded					Coarse	Class 10.9	150,000	1	90180A654	0000
				90	19	7.5	Partially Threaded					Coarse	Class 10.9	150,000	1	90180A655	0000


				100	19	7.5	Partially Threaded	Coarse				Class 10.9	150,000	1	90180A656	0000
				110	19	7.5	Partially Threaded	Coarse	Class 10.9			150,000	1	90180A657	0000
				120	19	7.5	Partially Threaded	Coarse	Class 10.9			150,000	1	90180A658	0000




						M12 × 1.5 mm

						60	19	7.7	Partially Threaded			Fine	Class 10.9	150,000	1	90180A924	0000


						70	19	7.7	Partially Threaded	Fine		Class 10.9	150,000	1	90180A925	0000
						80	19	7.7	Partially Threaded	Fine	Class 10.9	150,000	1	90180A926	0000
						90	19	7.7	Partially Threaded	Fine	Class 10.9	150,000	1	90180A927	0000
						100	19	7.7	Partially Threaded	Fine	Class 10.9	150,000	1	90180A928	0000




								M16 × 2 mm

								30	24	10	Fully Threaded	Coarse	Class 10.9	150,000	5	90180A659	00000


								35	24	10	Fully Threaded	Coarse	Class 10.9	150,000	1	90180A661	0000
								40	24	10	Fully Threaded	Coarse	Class 10.9	150,000	1	90180A662	0000
								45	24	10	Fully Threaded	Coarse	Class 10.9	150,000	1	90180A663	0000
								50	24	10	Fully Threaded	Coarse	Class 10.9	150,000	1	90180A664	0000
								60	24	10	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A665	0000
								70	24	10	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A666	0000
								80	24	10	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A667	0000
100								24	10	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A668	0000
120	24							10	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A669	0000
140	24							10	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A671	0000




								M20 × 2.5 mm

								60	30	12.5	Fully Threaded	Coarse	Class 10.9	150,000	1	90180A672	0000


								70	30	12.5	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A673	0000
		80						30	12.5	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A674	0000
		90	30					12.5	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A675	0000
		100	30					12.5	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A676	00000
		120	30					12.5	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A677	00000
		140	30					12.5	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A678	00000




								M24 × 3 mm

								80	36	15	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A679	00000


								90	36	15	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A681	00000
								100	36	15	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A682	00000
								120	36	15	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A683	00000
								140	36	15	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A684	00000
								150	36	15	Partially Threaded	Coarse	Class 10.9	150,000	1	90180A685	00000

Steel Hex-Drive Flat Head Screws

Our strongest hex-drive flat head screws. They're made of alloy steel, so they have nearly twice the tensile strength of other screws. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver without slipping and stripping the drive.

Length is measured from the top of the head.

Blue-Dyed Zinc-Plated Alloy Steel—These metric-sized screws have a distinctive blue color, so you can easily tell them apart from inch screws.

Standard Profile—Standard-profile heads are the most common choice for flat head screws.

				Head, mm
	Lg., mm	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Blue-Dyed Zinc-Plated Alloy Steel







				M3 × 0.5 mm

				5	90°	Standard	6	1.7	Fully Threaded	120,000	DIN 7991	—	25	91304A107	00000


				6	90°	Standard	6	1.7	Fully Threaded	120,000	DIN 7991	—	25	91304A108	0000
				8	90°	Standard	6	1.7	Fully Threaded	120,000	DIN 7991	—	50	91304A101	0000
				10	90°	Standard	6	1.7	Fully Threaded	120,000	DIN 7991	Material Certificate	50	91304A102	00000
				12	90°	Standard	6	1.7	Fully Threaded	120,000	DIN 7991	—	50	91304A103	00000
				16	90°	Standard	6	1.7	Fully Threaded	120,000	DIN 7991	—	50	91304A104	00000
				20	90°	Standard	6	1.7	Fully Threaded	120,000	DIN 7991	—	25	91304A105	00000
				25	90°	Standard	6	1.7	Partially Threaded	120,000	DIN 7991	—	25	91304A106	00000




						M4 × 0.7 mm

						6	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991	—	25	91304A118	0000


						8	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991	—	50	91304A111	00000
						10	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991	—	50	91304A112	0000
						12	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A113	00000
						16	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A114	00000
						20	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A115	00000
						25	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991	—	50	91304A116	00000
						30	90°	Standard	8	2.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A117	00000




								M5 × 0.8 mm

								8	90°	Standard	10	2.8	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A121	00000


								10	90°	Standard	10	2.8	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A122	00000
								12	90°	Standard	10	2.8	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A123	0000
								16	90°	Standard	10	2.8	Fully Threaded	120,000	ISO 10642	Material Certificate	50	91304A124	00000
								20	90°	Standard	10	2.8	Fully Threaded	120,000	DIN 7991, ISO 10642	Material Certificate	50	91304A125	00000
								25	90°	Standard	10	2.8	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A126	00000
								30	90°	Standard	10	2.8	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A127	00000




										M6 × 1 mm

										10	90°	Standard	12	3.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A131	00000


										12	90°	Standard	12	3.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	50	91304A132	00000
										16	90°	Standard	12	3.3	Fully Threaded	120,000	ISO 10642	—	50	91304A133	00000
										20	90°	Standard	12	3.3	Fully Threaded	120,000	ISO 10642	—	50	91304A134	00000
										25	90°	Standard	12	3.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A135	0000
										30	90°	Standard	12	3.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A136	00000
35										90°	Standard	12	3.3	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A137	00000
40	90°									Standard	12	3.3	Partially Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A138	00000
45	90°									Standard	12	3.3	Partially Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A139	00000
50	90°									Standard	12	3.3	Partially Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A141	0000




		M8 × 1.25 mm

		12	90°							Standard	16	4.4	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A151	00000


		16	90°							Standard	16	4.4	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A152	00000
		20	90°							Standard	16	4.4	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A153	00000
		25	90°							Standard	16	4.4	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A154	00000
		30	90°							Standard	16	4.4	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A155	00000
		35	90°							Standard	16	4.4	Fully Threaded	120,000	DIN 7991, ISO 10642	—	25	91304A156	00000
		40	90°							Standard	16	4.4	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A157	0000
		50	90°							Standard	16	4.4	Partially Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A158	00000




				M10 × 1.5 mm

				16	90°					Standard	20	5.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A161	0000


				20	90°					Standard	20	5.5	Fully Threaded	120,000	DIN 7991, ISO 10642	Material Certificate	10	91304A162	0000
				25	90°					Standard	20	5.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A163	0000
				30	90°					Standard	20	5.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A164	0000
				35	90°					Standard	20	5.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A165	00000
				40	90°					Standard	20	5.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A166	00000
				50	90°					Standard	20	5.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A167	00000




						M12 × 1.75 mm

						20	90°			Standard	24	6.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A171	0000


						25	90°			Standard	24	6.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A172	00000
						30	90°			Standard	24	6.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	5	91304A175	0000
						35	90°			Standard	24	6.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	10	91304A173	00000
						40	90°			Standard	24	6.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	5	91304A176	00000
						45	90°			Standard	24	6.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	5	91304A174	00000
						50	90°			Standard	24	6.5	Fully Threaded	120,000	DIN 7991, ISO 10642	—	5	91304A177	00000

Steel Button Head Hex-Drive Screws

Made of alloy steel, these screws have nearly twice the tensile strength of other steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.

Length is measured from under the head.

Blue-Dyed Zinc-Plated Alloy Steel—These metric-sized screws have a distinctive blue color, so you can easily tell them apart from inch screws.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Blue-Dyed Zinc-Plated Alloy Steel







				M3 × 0.5 mm

				8	5.7	1.65	Fully Threaded	120,000	ISO 7380	—	50	91352A111	000000


				10	5.7	1.65	Fully Threaded	120,000	ISO 7380	—	50	91352A112	00000
				12	5.7	1.65	Fully Threaded	120,000	ISO 7380	—	50	91352A113	00000
				16	5.7	1.65	Fully Threaded	120,000	ISO 7380	—	50	91352A114	00000
				20	5.7	1.65	Fully Threaded	120,000	ISO 7380	—	50	91352A115	00000




						M4 × 0.7 mm

						8	7.6	2.2	Fully Threaded	120,000	ISO 7380	—	50	91352A121	00000


						10	7.6	2.2	Fully Threaded	120,000	ISO 7380	Material Certificate	50	91352A122	00000
						12	7.6	2.2	Fully Threaded	120,000	ISO 7380	—	50	91352A123	00000
						16	7.6	2.2	Fully Threaded	120,000	ISO 7380	—	50	91352A124	00000
						20	7.6	2.2	Fully Threaded	120,000	ISO 7380	—	50	91352A125	00000
						25	7.6	2.2	Fully Threaded	120,000	ISO 7380	—	50	91352A126	00000




								M5 × 0.8 mm

								10	9.5	2.75	Fully Threaded	120,000	ISO 7380	—	50	91352A131	00000


								12	9.5	2.75	Fully Threaded	120,000	ISO 7380	—	50	91352A132	00000
								16	9.5	2.75	Fully Threaded	120,000	ISO 7380	—	50	91352A133	00000
								20	9.5	2.75	Fully Threaded	120,000	ISO 7380	—	50	91352A134	00000
								25	9.5	2.75	Fully Threaded	120,000	ISO 7380	—	25	91352A135	00000
								30	9.5	2.75	Fully Threaded	120,000	ISO 7380	—	25	91352A136	00000




										M6 × 1 mm

										10	10.5	3.3	Fully Threaded	120,000	ISO 7380	—	50	91352A141	00000


										12	10.5	3.3	Fully Threaded	120,000	ISO 7380	Material Certificate	50	91352A142	00000
										16	10.5	3.3	Fully Threaded	120,000	ISO 7380	—	50	91352A143	00000
										20	10.5	3.3	Fully Threaded	120,000	ISO 7380	—	50	91352A144	00000
										25	10.5	3.3	Fully Threaded	120,000	ISO 7380	—	25	91352A145	0000
										30	10.5	3.3	Fully Threaded	120,000	ISO 7380	—	25	91352A146	00000
										35	10.5	3.3	Fully Threaded	120,000	ISO 7380	—	25	91352A147	00000




												M8 × 1.25 mm

10	14											4.4	Fully Threaded	120,000	ISO 7380	—	25	91352A151	00000


12	14											4.4	Fully Threaded	120,000	ISO 7380	—	25	91352A152	0000
16	14	4.4										Fully Threaded	120,000	ISO 7380	—	25	91352A153	0000
20	14	4.4	Fully Threaded									120,000	ISO 7380	Material Certificate	25	91352A154	00000
25	14	4.4	Fully Threaded									120,000	ISO 7380	—	25	91352A155	00000
30	14	4.4	Fully Threaded									120,000	ISO 7380	—	10	91352A156	0000
35	14	4.4	Fully Threaded									120,000	ISO 7380	—	10	91352A157	0000
40	14	4.4	Fully Threaded									120,000	ISO 7380	—	10	91352A158	0000




		M10 × 1.5 mm

		16	17.5									5.5	Fully Threaded	120,000	ISO 7380	—	10	91352A161	0000


		20	17.5	5.5	Fully Threaded							120,000	ISO 7380	—	10	91352A162	0000
		25	17.5	5.5	Fully Threaded							120,000	ISO 7380	—	10	91352A163	00000
		30	17.5	5.5	Fully Threaded							120,000	ISO 7380	—	10	91352A164	00000
		35	17.5	5.5	Fully Threaded							120,000	ISO 7380	—	10	91352A165	00000
		40	17.5	5.5	Fully Threaded							120,000	ISO 7380	—	10	91352A166	00000
		50	17.5	5.5	Fully Threaded							120,000	ISO 7380	—	10	91352A167	00000




				M12 × 1.75 mm

				20	21							6.6	Fully Threaded	120,000	ISO 7380	—	5	91352A171	0000


				25	21	6.6	Fully Threaded					120,000	ISO 7380	—	5	91352A172	0000
				30	21	6.6	Fully Threaded					120,000	ISO 7380	—	5	91352A173	0000