MS 51963 Set Screws | McMaster-Carr

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Rockwell C45

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19 Products

Steel Cup-Tip Set Screws

Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

Cadmium-Plated Alloy Steel—The plating reduces friction between the screw and your mounting surface to prevent sticking when tightening and loosening. It also creates a barrier against rust.

Military Specification—These screws are manufactured and tested to strict U.S. military standards for material and construction.

	Mil. Spec.		Each
Cadmium-Plated Alloy Steel







	2-56

	1/8"	0.035"	Rockwell C45	MS51963-1	98637A016	00000


	3/16"	0.035"	Rockwell C45	MS51963-2	98637A019	0000
	1/4"	0.035"	Rockwell C45	MS51963-3	98637A022	0000




			4-40

			1/8"	0.050"	Rockwell C45	MS51963-9	98637A103	0000


			3/16"	0.050"	Rockwell C45	MS51963-10	98637A105	0000
			1/4"	0.050"	Rockwell C45	MS51963-11	98637A111	0000
			1/2"	0.050"	Rockwell C45	MS51963-15	98637A123	0000




					6-32

					1/8"	1/16"	Rockwell C45	MS51963-20	98637A142	0000


					3/16"	1/16"	Rockwell C45	MS51963-21	98637A146	0000
					1/4"	1/16"	Rockwell C45	MS51963-22	98637A151	0000
					3/8"	1/16"	Rockwell C45	MS51963-24	98637A155	0000




							8-32

							1/8"	5/64"	Rockwell C45	MS51963-33	98637A278	0000


							3/16"	5/64"	Rockwell C45	MS51963-34	98637A283	0000
							1/4"	5/64"	Rockwell C45	MS51963-35	98637A286	0000
							3/8"	5/64"	Rockwell C45	MS51963-37	98637A289	0000
							1/2"	5/64"	Rockwell C45	MS51963-39	98637A292	0000




									1/4"-20

									1/4"	1/8"	Rockwell C45	MS51963-63	98637A401	0000


									3/8"	1/8"	Rockwell C45	MS51963-65	98637A410	0000
									1/2"	1/8"	Rockwell C45	MS51963-67	98637A416	0000