Socket-Drive Thumb Screws

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EAR99

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133 Products

Stainless Steel Thumb Head Hex-Drive Precision Shoulder Screws

Take a hands-on approach with screws designed to be adjusted without tools. Twist the knob by hand for easy adjustment in maintenance-heavy environments. The hex drive offers the option for added torque. They are engineered to tight tolerances for assemblies that require smooth and accurate movement, with shoulder diameters twice as precise as those on standard-fit screws.

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

				Head					Each
	Shoulder Lg.	Thread Size	Thread Lg.	Dia.	Ht.	Drive Size	Tensile Strength, psi		1-4	5-Up
18-8 Stainless Steel







				1/8" Diameter Shoulder (-0.001" to 0" Tolerance)

				1/8"	4-40	5/32"	5/16"	1/8"	5/64"	70,000	92952A110	00000	00000


				3/16"	4-40	5/32"	5/16"	1/8"	5/64"	70,000	92952A120	0000	0000
				1/4"	4-40	5/32"	5/16"	1/8"	5/64"	70,000	92952A130	0000	0000
				5/16"	4-40	5/32"	5/16"	1/8"	5/64"	70,000	92952A140	0000	0000
				3/8"	4-40	5/32"	5/16"	1/8"	5/64"	70,000	92952A150	0000	0000




						3/16" Diameter Shoulder (-0.001" to 0" Tolerance)

						1/8"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A160	0000	0000


						3/16"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A170	0000	0000
						1/4"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A180	0000	0000
						5/16"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A190	0000	0000
						3/8"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A210	0000	0000
						1/2"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A220	0000	0000
						5/8"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A230	0000	0000
						3/4"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A240	0000	0000
						1"	8-32	3/16"	3/8"	5/32"	3/32"	70,000	92952A250	0000	0000




								1/4" Diameter Shoulder (-0.001" to 0" Tolerance)

								1/8"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A260	0000	0000


								3/16"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A270	0000	0000
								1/4"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A280	0000	0000
								5/16"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A290	0000	0000
								3/8"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A310	0000	0000
								1/2"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A320	0000	0000
								5/8"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A330	0000	0000
								3/4"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A340	0000	0000
								1"	10-32	1/4"	7/16"	3/16"	1/8"	70,000	92952A350	0000	0000




										4 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

										4 mm	M3 × 0.5 mm	4 mm	8 mm	3.2 mm	2 mm	70,000	92957A110	0000	0000


										5 mm	M3 × 0.5 mm	4 mm	8 mm	3.2 mm	2 mm	70,000	92957A120	0000	0000
										6 mm	M3 × 0.5 mm	4 mm	8 mm	3.2 mm	2 mm	70,000	92957A130	0000	0000
										8 mm	M3 × 0.5 mm	4 mm	8 mm	3.2 mm	2 mm	70,000	92957A140	0000	0000
										10 mm	M3 × 0.5 mm	4 mm	8 mm	3.2 mm	2 mm	70,000	92957A150	0000	0000




										5 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

		4 mm								M4 × 0.7 mm	5 mm	10 mm	4 mm	2.5 mm	70,000	92957A160	0000	0000


		5 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A170	0000	0000
		6 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A180	0000	0000
		8 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A190	0000	0000
		10 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A210	0000	0000
		12 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A220	0000	0000
		14 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A230	0000	0000
		16 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A240	0000	0000
		20 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A250	0000	0000
		25 mm	M4 × 0.7 mm							5 mm	10 mm	4 mm	2.5 mm	70,000	92957A260	0000	0000




				6 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

				6 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A270	0000	0000


				8 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A280	0000	0000
				10 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A290	0000	0000
				12 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A310	0000	0000
				14 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A320	0000	0000
				16 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A330	0000	0000
				20 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A340	0000	0000
				25 mm	M5 × 0.8 mm					6 mm	12 mm	5 mm	3 mm	70,000	92957A350	0000	0000

Shoulder Shims

Shoulder

Shortening

Shoulder Shortening—Pare down the shoulder on screws or tighten the screw's hold. Stack multiple shims to get the exact spacing you need.

		Shoulder Shortening
	Thk.	For Screw Size	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				For 1/8" Diameter Shoulder

				0.005"	No. 4	10	94773A606	00000


				0.01"	No. 4	10	94773A647	0000
				0.016"	No. 4	10	94773A679	0000
				0.02"	No. 4	10	94773A706	0000
				0.03"	No. 4	10	94773A737	0000
				0.06"	No. 4	5	94773A766	0000




						For 3/16" Diameter Shoulder

						0.005"	No. 8	10	94773A608	0000


						0.01"	No. 8	10	94773A649	0000
						0.016"	No. 8	10	94773A681	0000
						0.02"	No. 8	10	94773A708	0000
						0.03"	No. 8	10	94773A739	0000
						0.06"	No. 8	5	94773A768	0000




								For 1/4" Diameter Shoulder

								0.005"	No. 10	50	94773A610	0000


								0.01"	No. 10	100	94773A651	00000
								0.016"	No. 10	50	94773A683	00000
								0.02"	No. 10	50	94773A710	00000
								0.03"	No. 10	50	94773A741	00000
								0.06"	No. 10	25	94773A770	0000




										For 4 mm Diameter Shoulder

										0.005"	M4	10	91437A401	00000


										0.01"	M4	10	91437A402	00000
										0.031"	M4	10	91437A403	00000




												For 5 mm Diameter Shoulder

												0.005"	M5	10	91437A404	00000


0.01"	M5											10	91437A405	00000
0.031"	M5											10	91437A406	00000




		For 6 mm Diameter Shoulder

		0.005"	M6									10	91437A155	00000


		0.01"	M6									10	91437A162	00000
		0.015"	M6									10	91437A166	00000
		0.02"	M6									10	91437A171	00000
		0.025"	M6									10	91437A176	00000
		0.031"	M6									10	91437A181	00000
		0.062"	M6									5	91437A188	0000

Hex-Drive Plastic-Head Thumb Screws

Twist these thumb screws with a hex key when you need more torque than fingers can provide. You can also use a hex key to unfasten them in cramped spaces such as small control boxes. When fastening these thumb screws by hand, the knurled texture of the head creates extra grip as you twist. These thumb screws combine the strength of stainless steel with a lightweight plastic head that won't rust.

Length is measured from under the head.

18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.

		Head
	Lg.	Dia.	Ht.	Temp. Range, ° F	Color	Threading	Tensile Strength	Pkg. Qty.		Pkg.
18-8 Stainless Steel with Acetal Head







				4-40

				9/32"	5/16"	11/64"	32 to 180	Black	Fully Threaded	Not Rated	25	98704A105	000000


				13/32"	5/16"	11/64"	32 to 180	Black	Fully Threaded	Not Rated	25	98704A110	00000
				17/32"	5/16"	11/64"	32 to 180	Black	Fully Threaded	Not Rated	25	98704A115	00000
				21/32"	5/16"	11/64"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A120	0000
				25/32"	5/16"	11/64"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A125	0000
				29/32"	5/16"	11/64"	32 to 180	Black	Partially Threaded	Not Rated	10	98704A130	0000




						6-32

						9/32"	3/8"	3/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A200	0000


						13/32"	3/8"	3/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A205	0000
						17/32"	3/8"	3/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A210	0000
						21/32"	3/8"	3/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A215	0000
						25/32"	3/8"	3/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A220	0000
						29/32"	3/8"	3/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A225	0000




								8-32

								9/32"	1/2"	7/32"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A310	0000


								13/32"	1/2"	7/32"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A315	0000
								17/32"	1/2"	7/32"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A320	0000
								21/32"	1/2"	7/32"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A325	0000
								25/32"	1/2"	7/32"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A330	0000
								29/32"	1/2"	7/32"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A335	0000




										10-24

										3/8"	5/8"	1/4"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A415	0000


										1/2"	5/8"	1/4"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A420	0000
										5/8"	5/8"	1/4"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A425	0000
										3/4"	5/8"	1/4"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A430	0000
										7/8"	5/8"	1/4"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A435	0000
										1 1/8"	5/8"	1/4"	32 to 180	Black	Partially Threaded	Not Rated	10	98704A440	0000




												10-32

3/8"	5/8"											1/4"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A520	0000


1/2"	5/8"											1/4"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A525	0000
5/8"	5/8"	1/4"										32 to 180	Black	Fully Threaded	Not Rated	10	98704A530	0000
3/4"	5/8"	1/4"	32 to 180									Black	Fully Threaded	Not Rated	10	98704A535	0000
7/8"	5/8"	1/4"	32 to 180									Black	Fully Threaded	Not Rated	10	98704A540	0000
1 1/8"	5/8"	1/4"	32 to 180									Black	Partially Threaded	Not Rated	10	98704A545	0000




		1/4"-20

		3/8"	3/4"									5/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A605	0000


		1/2"	3/4"									5/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A610	0000
		5/8"	3/4"									5/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A615	0000
		3/4"	3/4"	5/16"								32 to 180	Black	Fully Threaded	Not Rated	10	98704A620	0000
		7/8"	3/4"	5/16"	32 to 180							Black	Fully Threaded	Not Rated	10	98704A625	00000
		1 1/8"	3/4"	5/16"	32 to 180							Black	Fully Threaded	Not Rated	10	98704A630	00000
		1 3/8"	3/4"	5/16"	32 to 180							Black	Partially Threaded	Not Rated	10	98704A635	00000




				1/4"-28

				3/8"	3/4"							5/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A705	00000


				1/2"	3/4"							5/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A710	00000
				5/8"	3/4"							5/16"	32 to 180	Black	Fully Threaded	Not Rated	10	98704A715	00000
				3/4"	3/4"	5/16"						32 to 180	Black	Fully Threaded	Not Rated	10	98704A720	00000
				7/8"	3/4"	5/16"	32 to 180					Black	Fully Threaded	Not Rated	10	98704A725	00000
				1 1/8"	3/4"	5/16"	32 to 180					Black	Fully Threaded	Not Rated	10	98704A730	00000
				1 3/8"	3/4"	5/16"	32 to 180					Black	Partially Threaded	Not Rated	10	98704A735	00000




						5/16"-18

						1/2"	1"					13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A800	0000


						5/8"	1"					13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A805	0000
						3/4"	1"					13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A810	0000
						7/8"	1"	13/32"				32 to 180	Black	Fully Threaded	Not Rated	5	98704A815	0000
						1 1/8"	1"	13/32"	32 to 180			Black	Fully Threaded	Not Rated	5	98704A820	0000
						1 3/8"	1"	13/32"	32 to 180			Black	Fully Threaded	Not Rated	5	98704A825	0000




								5/16"-24

								1/2"	1"			13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A900	0000


								5/8"	1"			13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A905	0000
								3/4"	1"			13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A910	0000
								7/8"	1"			13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A915	0000
								1 1/8"	1"	13/32"		32 to 180	Black	Fully Threaded	Not Rated	5	98704A920	0000
								1 3/8"	1"	13/32"	32 to 180	Black	Fully Threaded	Not Rated	5	98704A925	00000