Grade 8 Steel Specialty Bolts

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Tensile Strength

150,000 psi

Material

Alloy Steel

System of Measurement

Shoulder Diameter

Shoulder Length

Thread Size

Thread Length

Fastener Head Type

Socket Head Profile

Drive Style

Head Diameter

Minimum Shear Strength

Head Height

Drive Size

Specifications Met

Thread Pitch

Shoulder Fit

Hardness

Thread Type

Head Texture

RoHS

DFARS Specialty Metals

Compliant

Export Control Classification Number (ECCN)

REACH

Finish

Thread Spacing

43 Products

Thread-Locking Steel Hex-Drive Shoulder Screws

Immune to vibration, these screws won't loosen and are also fit for high-strength fastening. A threadlocker pellet is embedded into their threads, saving you the hassle of adding it yourself. The pellet compresses as the screw is tightened, which gives it more locking power than a patch. These screws are twice as strong as other standard-fit thread-locking shoulder screws, but will rust if exposed to moisture or chemicals.

Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

				Head, mm				Threadlocker				Each
	Shoulder Lg., mm	Thread Size	Thread Lg., mm	Dia.	Ht.	Drive Size, mm	Tensile Strength, psi	Type	Temp. Range, ° F	Specs. Met		1-4	5-Up
Black-Oxide Alloy Steel







				6 mm Diameter Shoulder (-0.049 mm to -0.01 mm Tolerance)

				10	M5 × 0.8 mm	10	10	5	3	150,000	Nylon Pellet	-50 to 250	ASME B18.3.3M, ISO 7379	000000000	00000	00000


				12	M5 × 0.8 mm	10	10	5	3	150,000	Nylon Pellet	-50 to 250	ASME B18.3.3M, ISO 7379	000000000	0000	0000
				16	M5 × 0.8 mm	10	10	5	3	150,000	Nylon Pellet	-50 to 250	ASME B18.3.3M, ISO 7379	000000000	0000	0000
				20	M5 × 0.8 mm	10	10	5	3	150,000	Nylon Pellet	-50 to 250	ASME B18.3.3M, ISO 7379	000000000	0000	0000
				25	M5 × 0.8 mm	10	10	5	3	150,000	Nylon Pellet	-50 to 250	ASME B18.3.3M, ISO 7379	000000000	0000	0000




						8 mm Diameter Shoulder (-0.049 mm to -0.01 mm Tolerance)

						10	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000


						12	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
						16	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
						20	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
						25	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
						30	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
						35	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
						40	M6 × 1 mm	11	13	6	4	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000




								10 mm Diameter Shoulder (-0.049 mm to -0.01 mm Tolerance)

								12	M8 × 1.25 mm	13	16	7	5	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000


								16	M8 × 1.25 mm	13	16	7	5	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
								20	M8 × 1.25 mm	13	16	7	5	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
								25	M8 × 1.25 mm	13	16	7	5	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
								30	M8 × 1.25 mm	13	16	7	5	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000
								35	M8 × 1.25 mm	13	16	7	5	150,000	Nylon Pellet	-50 to 250	ISO 7379	000000000	0000	0000

Shoulder Shims

Shoulder

Shortening

Shoulder

Lengthening

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 Lengthening—Wiggle over threads to add space or increase travel along the shoulder of screws. Stack these shims to get the exact spacing you need.

		Shoulder Shortening				Shoulder Lengthening
	Thk.	For Screw Size	Pkg. Qty.		Pkg.	For Screw Size	Pkg. Qty.		Pkg.
Spring Steel







				For 6 mm Diameter Shoulder

				0.005"	M6	5	000000000	00000	M5	5	000000000	000000


				0.01"	M6	5	000000000	0000	—	—	———	0
				0.015"	—	—	———	0	M5	5	000000000	00000
				0.02"	M6	10	000000000	0000	—	—	———	0
				0.06"	M6	5	000000000	0000	—	—	———	0




						For 8 mm Diameter Shoulder

						0.005"	M8	5	000000000	0000	M6	5	000000000	0000


						0.01"	M8	5	000000000	0000	—	—	———	0
						0.015"	M8	10	000000000	0000	M6	5	000000000	0000
						0.02"	M8	10	000000000	00000	—	—	———	0
						0.031"	M8	10	000000000	0000	M6	5	000000000	0000
						0.06"	M8	5	000000000	0000	—	—	———	0




								For 10 mm Diameter Shoulder

								0.005"	M10	5	000000000	0000	M8	5	000000000	0000


								0.01"	M10	5	000000000	0000	—	—	———	0
								0.015"	M10	10	000000000	00000	M8	5	000000000	0000
								0.02"	M10	10	000000000	00000	—	—	———	0
								0.031"	M10	10	000000000	00000	M8	5	000000000	0000
								0.06"	M10	5	000000000	0000	—	—	———	0