ISO 4766 Set Screws | McMaster-Carr

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192 Products

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Corrosion Resistant

Won't corrode from moisture, chemicals, and harsh weather

110 products

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Conduct electricity better than other screws

56 products

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Nonmagnetic

Won't damage or interfere with electronics

56 products

Slotted Brass Flat-Tip Set Screws

Made of brass, these flat-tip screws are conductive and nonmagnetic, making them ideal for electrical applications. Softer than most metal, the brass won't scratch or dent delicate parts. Unlike cup and cone tips, the flat tip distributes pressure evenly, reducing marring but not holding as tightly. With only two contact points, the slotted drive can't withstand much torque, so it's best to hand-tighten them.

	Lg., mm	Specs. Met	Pkg. Qty.		Pkg.
Brass







				M2 × 0.4 mm

				3	DIN 551, ISO 4766	10	93038A111	00000


				4	DIN 551, ISO 4766	10	93038A112	0000
				5	DIN 551, ISO 4766	10	93038A113	0000
				6	DIN 551, ISO 4766	10	93038A114	0000
				8	DIN 551, ISO 4766	10	93038A115	0000




						M2.5 × 0.45 mm

						5	DIN 551, ISO 4766	10	93038A116	0000




								M3 × 0.5 mm

								3	DIN 551, ISO 4766	25	93038A117	0000


								4	DIN 551, ISO 4766	25	93038A118	0000
								5	DIN 551, ISO 4766	25	93038A119	00000
								6	DIN 551, ISO 4766	25	93038A121	00000
								8	DIN 551, ISO 4766	25	93038A122	00000
								10	DIN 551, ISO 4766	25	93038A123	0000
								12	DIN 551, ISO 4766	25	93038A124	0000




										M4 × 0.7 mm

										4	DIN 551, ISO 4766	25	93038A125	00000


										5	DIN 551, ISO 4766	25	93038A126	0000
										6	DIN 551, ISO 4766	25	93038A127	0000
										8	DIN 551, ISO 4766	25	93038A128	0000
										10	DIN 551, ISO 4766	25	93038A129	0000
										12	DIN 551, ISO 4766	25	93038A131	00000
										16	DIN 551, ISO 4766	25	93038A132	00000
										20	DIN 551, ISO 4766	10	93038A133	0000




												M5 × 0.8 mm

												5	DIN 551, ISO 4766	25	93038A134	00000


												6	DIN 551, ISO 4766	25	93038A135	00000
8												DIN 551, ISO 4766	25	93038A136	00000
10	DIN 551, ISO 4766											10	93038A137	0000
12	DIN 551, ISO 4766											10	93038A138	0000
16	DIN 551, ISO 4766											10	93038A139	0000
20	DIN 551, ISO 4766											10	93038A141	0000
25	DIN 551, ISO 4766	10										93038A142	0000
30	DIN 551, ISO 4766	10	93038A143									00000




		M6 × 1 mm

		6	DIN 551, ISO 4766									10	93038A144	0000


		8	DIN 551, ISO 4766									10	93038A145	0000
		10	DIN 551, ISO 4766									10	93038A146	0000
		12	DIN 551, ISO 4766									10	93038A147	0000
		16	DIN 551, ISO 4766	10								93038A148	0000
		20	DIN 551, ISO 4766	10	93038A149							00000
		25	DIN 551, ISO 4766	10	93038A151							00000
		30	DIN 551, ISO 4766	5	93038A152							0000




				M8 × 1.25 mm

				8	DIN 551, ISO 4766	5	93038A153					0000


				10	DIN 551, ISO 4766	10	93038A154					00000
				12	DIN 551, ISO 4766	10	93038A155					00000
				16	DIN 551, ISO 4766	10	93038A156					00000
				20	DIN 551, ISO 4766	5	93038A157					0000
				25	DIN 551, ISO 4766	5	93038A158					0000
				30	DIN 551, ISO 4766	5	93038A159					00000




						M10 × 1.5 mm

						10	DIN 551, ISO 4766	1	93038A161			0000


						12	DIN 551, ISO 4766	5	93038A162			00000
						16	DIN 551, ISO 4766	5	93038A163			00000
						20	DIN 551, ISO 4766	1	93038A164			0000
						25	DIN 551, ISO 4766	1	93038A165			0000
						30	DIN 551, ISO 4766	1	93038A166			0000
						35	DIN 551, ISO 4766	1	93038A167			0000
						40	DIN 551, ISO 4766	1	93038A168			0000
						45	DIN 551, ISO 4766	1	93038A169			00000
						50	DIN 551, ISO 4766	1	93038A171			00000




								M12 × 1.75 mm

								20	DIN 551, ISO 4766	1	93038A172	0000

Slotted Steel Flat-Tip Set Screws

The strongest slotted drive set screws we offer. Unlike cup and cone tips, the flat tip distributes pressure evenly, reducing marring but not holding as tightly. They're a good choice for repositioning parts frequently on jigs, fixtures, and other applications where the tip presses against a flat surface. With only two contact points, the slotted drive can't withstand much torque, so it's best to hand-tighten them. Made of alloy steel, these screws are strong enough to hold components without wearing down.

	Lg., mm	Hardness	Specs. Met	Pkg. Qty.		Pkg.
Alloy Steel







				M2 × 0.4 mm

				3	Rockwell B67	DIN 551, ISO 4766	50	92098A111	00000


				4	Rockwell B67	DIN 551, ISO 4766	50	92098A112	00000
				5	Rockwell B67	DIN 551, ISO 4766	50	92098A113	0000
				6	Rockwell B67	DIN 551, ISO 4766	50	92098A114	0000
				8	Rockwell B67	DIN 551, ISO 4766	50	92098A115	00000




						M2.5 × 0.45 mm

						3	Rockwell B67	DIN 551, ISO 4766	50	92098A116	00000


						4	Rockwell B67	DIN 551, ISO 4766	50	92098A117	00000
						5	Rockwell B67	DIN 551, ISO 4766	50	92098A118	0000
						6	Rockwell B67	DIN 551, ISO 4766	50	92098A119	00000
						8	Rockwell B67	DIN 551, ISO 4766	50	92098A121	00000
						10	Rockwell B67	DIN 551, ISO 4766	50	92098A122	00000




								M3 × 0.5 mm

								3	Rockwell B67	DIN 551, ISO 4766	100	92098A123	0000


								4	Rockwell B67	DIN 551, ISO 4766	100	92098A124	00000
								5	Rockwell B67	DIN 551, ISO 4766	100	92098A125	00000
								6	Rockwell B67	DIN 551, ISO 4766	100	92098A126	00000
								8	Rockwell B67	DIN 551, ISO 4766	100	92098A127	00000
								10	Rockwell B67	DIN 551, ISO 4766	100	92098A128	00000
								12	Rockwell B67	DIN 551, ISO 4766	50	92098A129	0000
								16	Rockwell B67	DIN 551, ISO 4766	50	92098A131	00000
								20	Rockwell B67	DIN 551, ISO 4766	25	92098A132	0000




										M4 × 0.7 mm

										4	Rockwell B67	DIN 551, ISO 4766	100	92098A133	00000


										5	Rockwell B67	DIN 551, ISO 4766	100	92098A134	00000
										6	Rockwell B67	DIN 551, ISO 4766	100	92098A135	0000
										8	Rockwell B67	DIN 551, ISO 4766	100	92098A136	00000
										10	Rockwell B67	DIN 551, ISO 4766	100	92098A137	00000
										12	Rockwell B67	DIN 551, ISO 4766	100	92098A138	00000
										16	Rockwell B67	DIN 551, ISO 4766	50	92098A139	0000
										20	Rockwell B67	DIN 551, ISO 4766	25	92098A141	0000
										25	Rockwell B67	DIN 551, ISO 4766	25	92098A142	0000
30										Rockwell B67	DIN 551, ISO 4766	25	92098A143	0000




		M5 × 0.8 mm

		5	Rockwell B67							DIN 551, ISO 4766	50	92098A144	0000


		6	Rockwell B67							DIN 551, ISO 4766	50	92098A145	0000
		8	Rockwell B67							DIN 551, ISO 4766	50	92098A146	0000
		10	Rockwell B67							DIN 551, ISO 4766	50	92098A147	0000
		12	Rockwell B67							DIN 551, ISO 4766	50	92098A148	00000
		16	Rockwell B67							DIN 551, ISO 4766	50	92098A149	00000
		20	Rockwell B67							DIN 551, ISO 4766	25	92098A151	0000
		25	Rockwell B67							DIN 551, ISO 4766	25	92098A152	0000
		30	Rockwell B67							DIN 551, ISO 4766	25	92098A153	00000




				M6 × 1 mm

				6	Rockwell B67					DIN 551, ISO 4766	50	92098A154	0000


				8	Rockwell B67					DIN 551, ISO 4766	50	92098A155	00000
				10	Rockwell B67					DIN 551, ISO 4766	50	92098A156	0000
				12	Rockwell B67					DIN 551, ISO 4766	50	92098A157	00000
				16	Rockwell B67					DIN 551, ISO 4766	50	92098A158	00000
				20	Rockwell B67					DIN 551, ISO 4766	25	92098A159	0000
				25	Rockwell B67					DIN 551, ISO 4766	25	92098A161	0000
				30	Rockwell B67					DIN 551, ISO 4766	10	92098A162	0000
				35	Rockwell B67	DIN 551, ISO 4766				10	92098A163	0000
				40	Rockwell B67	DIN 551, ISO 4766	10			92098A164	0000




						M8 × 1.25 mm

						8	Rockwell B67			DIN 551, ISO 4766	25	92098A165	00000


						10	Rockwell B67			DIN 551, ISO 4766	25	92098A166	00000
						12	Rockwell B67			DIN 551, ISO 4766	25	92098A167	00000
						16	Rockwell B67			DIN 551, ISO 4766	25	92098A168	00000
						20	Rockwell B67			DIN 551, ISO 4766	25	92098A169	00000
						25	Rockwell B67			DIN 551, ISO 4766	10	92098A171	0000
						30	Rockwell B67			DIN 551, ISO 4766	10	92098A172	0000
						35	Rockwell B67	DIN 551, ISO 4766		10	92098A173	0000
						40	Rockwell B67	DIN 551, ISO 4766	10	92098A174	0000
						45	Rockwell B67	DIN 551, ISO 4766	10	92098A175	00000
						50	Rockwell B67	DIN 551, ISO 4766	10	92098A176	00000




								M10 × 1.5 mm

								10	Rockwell B67	DIN 551, ISO 4766	10	92098A177	0000


								12	Rockwell B67	DIN 551, ISO 4766	10	92098A178	0000
								16	Rockwell B67	DIN 551, ISO 4766	10	92098A179	0000
								20	Rockwell B67	DIN 551, ISO 4766	10	92098A181	00000
25								Rockwell B67	DIN 551, ISO 4766	10	92098A182	00000
30	Rockwell B67							DIN 551, ISO 4766	10	92098A183	00000
35	Rockwell B67							DIN 551, ISO 4766	10	92098A184	00000
40	Rockwell B67							DIN 551, ISO 4766	5	92098A185	0000
45	Rockwell B67							DIN 551, ISO 4766	5	92098A186	0000
50	Rockwell B67							DIN 551, ISO 4766	5	92098A187	0000

Slotted Stainless Steel Flat-Tip Set Screws

These corrosion-resistant screws spread out holding power to prevent damage and have a basic drive style. Made of stainless steel, these screws won't rust, but they're not as strong as alloy steel. Unlike cup and cone tips, the flat tip distributes pressure evenly, reducing marring but not holding as tightly. They're a good choice for repositioning parts frequently on jigs, fixtures, and other applications where the tip presses against a flat surface. With only two contact points, the slotted drive can't withstand much torque, so it's best to hand-tighten them.

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

	Lg., mm	Hardness	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M2 × 0.4 mm

				3	Not Rated	DIN 551, ISO 4766	50	91067A111	000000


				4	Not Rated	DIN 551, ISO 4766	50	91067A112	00000
				5	Not Rated	DIN 551, ISO 4766	50	91067A113	00000




						M2.5 × 0.45 mm

						3	Not Rated	DIN 551, ISO 4766	50	91067A114	00000


						4	Not Rated	DIN 551, ISO 4766	50	91067A115	00000
						5	Not Rated	DIN 551, ISO 4766	50	91067A116	00000




								M3 × 0.5 mm

								3	Not Rated	DIN 551, ISO 4766	10	91067A117	0000


								4	Not Rated	DIN 551, ISO 4766	10	91067A118	0000
								5	Not Rated	DIN 551, ISO 4766	10	91067A119	0000
								6	Not Rated	DIN 551, ISO 4766	10	91067A121	0000
								8	Not Rated	DIN 551, ISO 4766	10	91067A122	0000
								10	Not Rated	DIN 551, ISO 4766	10	91067A123	0000
								12	Not Rated	DIN 551, ISO 4766	10	91067A124	0000
								16	Not Rated	DIN 551, ISO 4766	10	91067A125	0000
								20	Not Rated	DIN 551, ISO 4766	10	91067A126	0000




										M4 × 0.7 mm

										4	Not Rated	DIN 551, ISO 4766	10	91067A127	0000


										5	Not Rated	DIN 551, ISO 4766	10	91067A128	0000
										6	Not Rated	DIN 551, ISO 4766	10	91067A129	0000
										8	Not Rated	DIN 551, ISO 4766	10	91067A131	0000
										10	Not Rated	DIN 551, ISO 4766	10	91067A132	0000
										12	Not Rated	DIN 551, ISO 4766	10	91067A133	0000
										16	Not Rated	DIN 551, ISO 4766	10	91067A134	0000
										20	Not Rated	DIN 551, ISO 4766	10	91067A135	0000
										25	Not Rated	DIN 551, ISO 4766	10	91067A136	0000




												M5 × 0.8 mm

6	Not Rated											DIN 551, ISO 4766	10	91067A137	0000


8	Not Rated											DIN 551, ISO 4766	10	91067A138	0000
10	Not Rated	DIN 551, ISO 4766										10	91067A139	0000
12	Not Rated	DIN 551, ISO 4766	10									91067A141	0000
16	Not Rated	DIN 551, ISO 4766	10									91067A142	0000
20	Not Rated	DIN 551, ISO 4766	10									91067A143	00000
25	Not Rated	DIN 551, ISO 4766	10									91067A144	00000




		M6 × 1 mm

		6	Not Rated									DIN 551, ISO 4766	10	91067A145	0000


		8	Not Rated	DIN 551, ISO 4766	10							91067A146	0000
		10	Not Rated	DIN 551, ISO 4766	10							91067A147	00000
		12	Not Rated	DIN 551, ISO 4766	10							91067A148	00000
		16	Not Rated	DIN 551, ISO 4766	10							91067A149	00000
		20	Not Rated	DIN 551, ISO 4766	10							91067A151	00000
		25	Not Rated	DIN 551, ISO 4766	5							91067A152	0000
		30	Not Rated	DIN 551, ISO 4766	5							91067A153	0000
		40	Not Rated	DIN 551, ISO 4766	5							91067A154	0000




				M8 × 1.25 mm

				10	Not Rated	DIN 551, ISO 4766	5					91067A155	0000


				12	Not Rated	DIN 551, ISO 4766	5					91067A156	0000
				16	Not Rated	DIN 551, ISO 4766	5					91067A157	0000
				20	Not Rated	DIN 551, ISO 4766	5					91067A158	0000
				25	Not Rated	DIN 551, ISO 4766	5					91067A159	0000
				30	Not Rated	DIN 551, ISO 4766	5					91067A161	0000
				35	Not Rated	DIN 551, ISO 4766	5					91067A162	00000
				40	Not Rated	DIN 551, ISO 4766	5					91067A163	00000




						M10 × 1.5 mm

						16	Not Rated	DIN 551, ISO 4766	1			91067A164	0000


						20	Not Rated	DIN 551, ISO 4766	1			91067A165	0000
						25	Not Rated	DIN 551, ISO 4766	1			91067A166	0000
						30	Not Rated	DIN 551, ISO 4766	1			91067A167	0000
						35	Not Rated	DIN 551, ISO 4766	1			91067A168	0000
						40	Not Rated	DIN 551, ISO 4766	1			91067A169	0000

Slotted Plastic Flat-Tip Set Screws

With a slotted drive, these plastic screws won't scratch or dent surfaces and turn easily with everyday tools. Unlike cup and cone tips, the flat tip distributes pressure evenly, reducing marring but not holding as tightly. They’re a good choice for repositioning parts frequently on jigs, fixtures, and other applications where the tip presses against a flat surface. With only two contact points, the slotted drive can’t withstand much torque, so it’s best to hand-tighten them.

Nonmarring Nylon—Lightweight and rust resistant, nylon excels in dry environments, but it swells and weakens over time when wet.

	Hardness	Specs. Met	Pkg. Qty.		Pkg.
Nonmarring Nylon







	M4 × 0.7 mm

	8	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A121	00000


	10	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A122	0000




			M5 × 0.8 mm

			5	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A123	0000


			6	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A124	0000
			8	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A125	0000
			10	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A126	0000




					M6 × 1 mm

					6	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A127	0000


					8	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A128	0000
					10	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A129	0000
					12	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	25	95862A131	0000




							M8 × 1.25 mm

							10	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	10	95862A132	0000


							12	0 to 200	Off-White	Not Rated	DIN 551, ISO 4766	10	95862A133	0000