Easy-Adjust Set Screws | McMaster-Carr

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147 Products

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Maintain surface contact even during small adjustments

65 products

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Rounded so they won't dig into your surface and scratch it

82 products

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Easy Adjust

Make adjustments without needing to loosen the screw

65 products

Corrosion Resistant

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

46 products

Easy-Adjust Steel Ball-Tip Set Screws

Keep pressure consistent on workpieces that aren't fully flat or parallel. A rolling ball on the tip of these screws maintains contact and swivels 360° to make small adjustments without loosening. Made of alloy steel, they are strong enough to hold components without wearing down.

Black-Oxide Alloy Steel—These screws have a dark matte finish that offers minimal corrosion resistance, so they're best for dry environments.

	Lg.	Tip Dia.	Drive Size	Ball Movement	Hardness		Each
Black-Oxide Alloy Steel







				1/4"-20

				1/2"	0.157"	1/8"	360° Rotation	Rockwell C32	91677A106	00000


				3/4"	0.157"	1/8"	360° Rotation	Rockwell C32	91677A110	0000




						5/16"-18

						3/4"	0.216"	5/32"	360° Rotation	Rockwell C32	91677A114	0000


						1"	0.216"	5/32"	360° Rotation	Rockwell C32	91677A118	0000




								3/8"-16

								3/4"	0.275"	3/16"	360° Rotation	Rockwell C32	91677A122	0000


								1"	0.275"	3/16"	360° Rotation	Rockwell C32	91677A126	0000




										1/2"-13

										1"	0.334"	1/4"	360° Rotation	Rockwell C32	91677A130	0000


										1 1/2"	0.334"	1/4"	360° Rotation	Rockwell C32	91677A134	0000




												5/8"-11

												1"	0.472"	5/16"	360° Rotation	Rockwell C32	91677A138	00000


												1 1/2"	0.472"	5/16"	360° Rotation	Rockwell C32	91677A142	00000


												Alloy Steel







																M3 × 0.5 mm

5 mm	1.5 mm															1.5 mm	360° Rotation	Rockwell C39	93339A245	0000


7.5 mm	1.5 mm															1.5 mm	360° Rotation	Rockwell C39	93339A246	0000
10 mm	1.5 mm	1.5 mm														360° Rotation	Rockwell C39	93339A247	0000




		M4 × 0.7 mm

		6 mm	2.5 mm													2 mm	360° Rotation	Rockwell C39	93339A062	0000


		8 mm	2.5 mm													2 mm	360° Rotation	Rockwell C39	93339A064	0000
		10 mm	2.5 mm	2 mm												360° Rotation	Rockwell C39	93339A248	0000
		12 mm	2.5 mm	2 mm	360° Rotation											Rockwell C39	93339A066	0000
		16 mm	2.5 mm	2 mm	360° Rotation											Rockwell C39	93339A249	0000




				M5 × 0.8 mm

				8 mm	3 mm											2.5 mm	360° Rotation	Rockwell C39	93339A121	0000


				10 mm	3 mm	2.5 mm	360° Rotation									Rockwell C39	93339A250	0000
				12 mm	3 mm	2.5 mm	360° Rotation									Rockwell C39	93339A124	0000
				16 mm	3 mm	2.5 mm	360° Rotation									Rockwell C39	93339A251	0000
				20 mm	3 mm	2.5 mm	360° Rotation									Rockwell C39	93339A128	0000
				25 mm	3 mm	2.5 mm	360° Rotation									Rockwell C39	93339A252	0000




						M6 × 1 mm

						10.8 mm	4 mm	3 mm	360° Rotation							Rockwell C39	93339A205	0000


						12.8 mm	4 mm	3 mm	360° Rotation							Rockwell C39	93339A208	0000
						16.8 mm	4 mm	3 mm	360° Rotation							Rockwell C39	93339A211	0000
						20.8 mm	4 mm	3 mm	360° Rotation							Rockwell C39	93339A214	0000
						25.8 mm	4 mm	3 mm	360° Rotation							Rockwell C39	93339A217	0000




								M8 × 1.25 mm

								11.2 mm	5.5 mm	4 mm	360° Rotation					Rockwell C39	93339A221	0000


								13.2 mm	5.5 mm	4 mm	360° Rotation					Rockwell C39	93339A223	0000
								17.2 mm	5.5 mm	4 mm	360° Rotation					Rockwell C39	93339A226	0000
								21.2 mm	5.5 mm	4 mm	360° Rotation					Rockwell C39	93339A227	0000
								26.2 mm	5.5 mm	4 mm	360° Rotation	Rockwell C39	93339A253			0000
								31.2 mm	5.5 mm	4 mm	360° Rotation	Rockwell C39	93339A229			0000




										M10 × 1.5 mm

										13.7 mm	7 mm	5 mm	360° Rotation	Rockwell C39	93339A254	0000


										17.7 mm	7 mm	5 mm	360° Rotation	Rockwell C39	93339A230	0000
										21.7 mm	7 mm	5 mm	360° Rotation	Rockwell C39	93339A231	0000
										26.7 mm	7 mm	5 mm	360° Rotation	Rockwell C39	93339A232	0000
31.7 mm										7 mm	5 mm	360° Rotation	Rockwell C39	93339A255	0000
36.7 mm	7 mm									5 mm	360° Rotation	Rockwell C39	93339A235	0000
41.7 mm	7 mm									5 mm	360° Rotation	Rockwell C39	93339A256	0000




										M12 × 1.75 mm

										18 mm	8.5 mm	6 mm	360° Rotation	Rockwell C39	93339A257	0000


										22 mm	8.5 mm	6 mm	360° Rotation	Rockwell C39	93339A238	0000
		27 mm								8.5 mm	6 mm	360° Rotation	Rockwell C39	93339A239	0000
		32 mm	8.5 mm							6 mm	360° Rotation	Rockwell C39	93339A241	0000
		42 mm	8.5 mm							6 mm	360° Rotation	Rockwell C39	93339A244	0000
		52 mm	8.5 mm							6 mm	360° Rotation	Rockwell C39	93339A258	0000




										M16 × 2 mm

										28.3 mm	12 mm	8 mm	360° Rotation	Rockwell C39	93339A260	00000


										38.3 mm	12 mm	8 mm	360° Rotation	Rockwell C39	93339A261	00000
				53.3 mm						12 mm	8 mm	360° Rotation	Rockwell C39	93339A262	00000




										M20 × 2.5 mm

										44.2 mm	15 mm	10 mm	360° Rotation	Rockwell C39	93339A264	00000


										64.2 mm	15 mm	10 mm	360° Rotation	Rockwell C39	93339A266	00000




										M24 × 3 mm

										54.7 mm	18 mm	12 mm	360° Rotation	Rockwell C39	93339A268	00000


										84.7 mm	18 mm	12 mm	360° Rotation	Rockwell C39	93339A269	00000

Steel Oval-Tip Set Screws

Adjust as often as you need without scratching or gouging shafts and other mating parts. With a rounded tip, these set screws won't dig into surfaces like cone- and cup-tip screws do. Since the round tip makes contact at an angle, they're good for surfaces with U- or V-shaped grooves. Made of alloy steel, these screws are strong enough to hold components without wearing down.

Black-Oxide Alloy Steel—These screws have a dark matte finish that offers minimal corrosion resistance, so they're best for dry environments.

	Lg.	Drive Size	Hardness	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				4-40

				1/8"	0.050"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A002	000000


				3/16"	0.050"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A005	00000




						6-32

						3/16"	1/16"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A020	0000


						1/4"	1/16"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A023	00000




								8-32

								1/4"	5/64"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A152	0000


								5/16"	5/64"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A155	00000
								3/8"	5/64"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A157	00000




										10-32

										3/16"	3/32"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A210	00000


										1/4"	3/32"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A212	00000
										5/16"	3/32"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A214	00000
										3/8"	3/32"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A216	00000
										1/2"	3/32"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A219	00000
										3/4"	3/32"	Rockwell C45	ASME B18.3, ASTM F912	25	92765A223	00000
										1"	3/32"	Rockwell C45	ASME B18.3, ASTM F912	10	92765A226	0000




												1/4"-20

												3/8"	1/8"	Rockwell C45	ASME B18.3, ASTM F912	25	92765A304	00000


												1/2"	1/8"	Rockwell C45	ASME B18.3, ASTM F912	25	92765A305	00000
												3/4"	1/8"	Rockwell C45	ASME B18.3, ASTM F912	25	92765A308	00000
												1"	1/8"	Rockwell C45	ASME B18.3, ASTM F912	25	92765A311	00000
												1 1/4"	1/8"	Rockwell C45	ASME B18.3, ASTM F912	10	92765A314	00000
												1 1/2"	1/8"	Rockwell C45	ASME B18.3, ASTM F912	10	92765A317	00000




												1/4"-28

		1/4"										1/8"	Rockwell C45	ASME B18.3, ASTM F912	50	92765A350	00000


		3/8"	1/8"									Rockwell C45	ASME B18.3, ASTM F912	50	92765A353	00000
		1/2"	1/8"									Rockwell C45	ASME B18.3, ASTM F912	10	92765A356	0000
		3/4"	1/8"									Rockwell C45	ASME B18.3, ASTM F912	10	92765A359	0000
		1"	1/8"									Rockwell C45	ASME B18.3, ASTM F912	10	92765A361	0000




				5/16"-18

				5/16"	5/32"							Rockwell C45	ASME B18.3, ASTM F912	50	92765A405	00000


				3/8"	5/32"							Rockwell C45	ASME B18.3, ASTM F912	50	92765A408	00000
				1/2"	5/32"							Rockwell C45	ASME B18.3, ASTM F912	50	92765A411	00000
				5/8"	5/32"							Rockwell C45	ASME B18.3, ASTM F912	25	92765A414	0000
				3/4"	5/32"							Rockwell C45	ASME B18.3, ASTM F912	25	92765A417	00000
				1"	5/32"							Rockwell C45	ASME B18.3, ASTM F912	25	92765A420	00000




						3/8"-16

						1/2"	3/16"					Rockwell C45	ASME B18.3, ASTM F912	25	92765A502	00000


						5/8"	3/16"					Rockwell C45	ASME B18.3, ASTM F912	25	92765A504	00000
						3/4"	3/16"					Rockwell C45	ASME B18.3, ASTM F912	25	92765A507	00000
						1"	3/16"					Rockwell C45	ASME B18.3, ASTM F912	10	92765A510	0000
						1 1/2"	3/16"	Rockwell C45				ASME B18.3, ASTM F912	10	92765A512	00000




								3/8"-24

								1/2"	3/16"			Rockwell C45	ASME B18.3, ASTM F912	25	92765A548	00000


								5/8"	3/16"			Rockwell C45	ASME B18.3, ASTM F912	10	92765A550	0000
								3/4"	3/16"			Rockwell C45	ASME B18.3, ASTM F912	10	92765A553	00000
								1"	3/16"			Rockwell C45	ASME B18.3, ASTM F912	10	92765A559	00000
								1 1/2"	3/16"			Rockwell C45	ASME B18.3, ASTM F912	5	92765A562	00000




										1/2"-13

										1"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	10	92765A614	00000




												1/2"-20

3/4"												1/4"	Rockwell C45	ASME B18.3, ASTM F912	5	92765A647	00000


1"	1/4"											Rockwell C45	ASME B18.3, ASTM F912	5	92765A650	00000




												3/4"-10

												3/4"	3/8"	Rockwell C45	ASME B18.3, ASTM F912	1	92765A705	0000


		1"										3/8"	Rockwell C45	ASME B18.3, ASTM F912	1	92765A708	0000

Stainless Steel Oval-Tip Set Screws

The most corrosion-resistant oval-tip set screws we offer. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. With a rounded tip, these screws won't dig into surfaces like cone- and cup-tip screws do. This makes them ideal for when you need to adjust screws frequently while avoiding scratches on mating parts. Since the round tip makes contact at an angle, they're good for surfaces with U- or V-shaped grooves.

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.

Highly Corrosion-Resistant 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.	Drive Size	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







			4-40

			1/8"	0.050"	Rockwell B80	ASME B18.3	50	92778A040	00000


			3/16"	0.050"	Rockwell B80	ASME B18.3	50	92778A044	0000
			1/4"	0.050"	Rockwell B80	ASME B18.3	50	92778A047	0000
			3/8"	0.050"	Rockwell B80	ASME B18.3	50	92778A052	0000




					6-32

					1/8"	1/16"	Rockwell B80	ASME B18.3	25	92778A067	0000


					3/16"	1/16"	Rockwell B80	ASME B18.3	25	92778A069	0000
					1/4"	1/16"	Rockwell B80	ASME B18.3	25	92778A071	0000
					3/8"	1/16"	Rockwell B80	ASME B18.3	25	92778A074	0000
					1/2"	1/16"	Rockwell B80	ASME B18.3	25	92778A079	0000




							8-32

							1/4"	5/64"	Rockwell B80	ASME B18.3	25	92778A113	0000


							3/8"	5/64"	Rockwell B80	ASME B18.3	25	92778A114	0000
							1/2"	5/64"	Rockwell B80	ASME B18.3	25	92778A115	0000




									10-32

									3/16"	3/32"	Rockwell B80	ASME B18.3	25	92778A117	0000


									1/4"	3/32"	Rockwell B80	ASME B18.3	25	92778A119	0000
									3/8"	3/32"	Rockwell B80	ASME B18.3	25	92778A120	0000
									1/2"	3/32"	Rockwell B80	ASME B18.3	25	92778A121	0000
									3/4"	3/32"	Rockwell B80	ASME B18.3	25	92778A122	0000




											1/4"-20

											3/8"	1/8"	Rockwell B80	ASME B18.3	25	92778A123	00000


											1/2"	1/8"	Rockwell B80	ASME B18.3	25	92778A127	00000




											3/8"-16

											5/8"	3/16"	Rockwell B80	ASME B18.3	10	92778A135	00000


		Highly Corrosion-Resistant 316 Stainless Steel







													4-40

													1/8"	0.050"	Rockwell B80	ASME B18.3	25	99553A140	00000


			3/16"	0.050"									Rockwell B80	ASME B18.3	10	99553A142	0000
			1/4"	0.050"									Rockwell B80	ASME B18.3	10	99553A148	0000
			3/8"	0.050"									Rockwell B80	ASME B18.3	10	99553A156	0000




													6-32

													1/4"	1/16"	Rockwell B80	ASME B18.3	10	99553A179	0000


					3/8"	1/16"							Rockwell B80	ASME B18.3	10	99553A183	0000
					1/2"	1/16"							Rockwell B80	ASME B18.3	10	99553A188	0000




													8-32

													1/4"	5/64"	Rockwell B80	ASME B18.3	10	99553A220	0000


							3/8"	5/64"					Rockwell B80	ASME B18.3	10	99553A223	0000
							1/2"	5/64"					Rockwell B80	ASME B18.3	10	99553A226	0000




													10-32

													3/16"	3/32"	Rockwell B80	ASME B18.3	10	99553A388	0000


									1/4"				3/32"	Rockwell B80	ASME B18.3	10	99553A393	0000
									3/8"	3/32"			Rockwell B80	ASME B18.3	10	99553A399	0000
									1/2"	3/32"			Rockwell B80	ASME B18.3	10	99553A402	0000




													1/4"-20

													3/8"	1/8"	Rockwell B80	ASME B18.3	10	99553A447	0000


1/2"	1/8"												Rockwell B80	ASME B18.3	10	99553A453	0000

Easy-Adjust Stainless Steel Ball-Tip Set Screws

The most corrosion-resistant ball-tip set screws we offer. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. These screws are used to keep pressure consistent on workpieces that aren't fully flat or parallel. A rolling ball on the tip maintains contact and swivels 360° to make small adjustments without loosening the screw.

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.

	Ball Movement	Hardness		Each
18-8 Stainless Steel







	1/4"-20

	1/2"	0.157"	1/8"	360° Rotation	Rockwell C30	91658A147	00000


	3/4"	0.157"	1/8"	360° Rotation	Rockwell C30	91658A154	0000




			5/16"-18

			3/4"	0.216"	5/32"	360° Rotation	Rockwell C30	91658A159	0000


			1"	0.216"	5/32"	360° Rotation	Rockwell C30	91658A163	0000




					3/8"-16

					3/4"	0.275"	3/16"	360° Rotation	Rockwell C30	91658A168	00000


					1"	0.275"	3/16"	360° Rotation	Rockwell C30	91658A172	00000




							1/2"-13

							1"	0.334"	1/4"	360° Rotation	Rockwell C30	91658A183	00000


							1 1/2"	0.334"	1/4"	360° Rotation	Rockwell C30	91658A189	00000




									5/8"-11

									1"	0.472"	5/16"	360° Rotation	Rockwell C30	91658A194	00000


									1 1/2"	0.472"	5/16"	360° Rotation	Rockwell C30	91658A198	00000