MS 35308 Cap Screws | McMaster-Carr

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	Specifications Met Specifications Met

Mil. Spec.

	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

	Thread Type Thread Type

UNC

UNF

	Length Length

	Material Material

Stainless Steel

	Head Type Head Type

	Hex

	Threading Threading

	Fully Threaded
	Partially Threaded

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
Compliant

	Thread Spacing Thread Spacing

Coarse

Fine

	Drive Style Drive Style

	External Hex

	Hardness Hardness

Rockwell B74

Rockwell B80

	Head Height Head Height

	Head Width Head Width

	Thread Fit Thread Fit

Class 2A

	Thread Direction Thread Direction

	Right Hand

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Tensile Strength Tensile Strength

60,000 to 79,999 psi

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Minimum Thread Length Minimum Thread Length

52 Products

About Hex Head Screws and Bolts

Fully Threaded

Partially Threaded

Choose these screws for their adherence to strict military standards for material and construction. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. Dimensions meet Fed. Spec. FF-S-85 specifications. Length is measured from under the head.

Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Fine threads are closely spaced to prevent loosening from vibration.

For technical drawings and 3-D models, click on a part number.

				Head
Lg.	Threading	Min. Thread Lg.	Thread Spacing	Wd.	Ht.	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
1/4"-28
1/2"	Fully Threaded	__	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-303	10	000000000	00000
9/16"	Fully Threaded	__	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-304	10	000000000	0000
5/8"	Fully Threaded	__	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-305	10	000000000	00000
3/4"	Fully Threaded	__	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-306	10	000000000	0000
7/8"	Fully Threaded	__	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-307	10	000000000	00000
1"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-308	10	000000000	0000
1 1/8"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-309	10	000000000	00000
1 1/4"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-310	10	000000000	00000
1 3/8"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-311	10	000000000	00000
1 1/2"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-312	10	000000000	00000
1 3/4"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-313	10	000000000	00000
2"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-314	5	000000000	00000
2 1/4"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-315	5	000000000	00000
2 1/2"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-316	5	000000000	00000
3"	Partially Threaded	3/4"	Fine	7/16"	5/32"	70,000	Fed. Spec. FF-S-85, MS35308-318	5	000000000	00000
5/16"-24
5/8"	Fully Threaded	__	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-331	10	000000000	00000
3/4"	Fully Threaded	__	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-332	5	000000000	0000
7/8"	Fully Threaded	__	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-333	5	000000000	00000
1"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-334	5	000000000	00000
1 1/8"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-335	5	000000000	00000
1 1/4"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-336	5	000000000	00000
1 3/8"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-337	5	000000000	00000
1 1/2"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-338	5	000000000	00000
1 3/4"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-339	5	000000000	00000
2"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-340	1	000000000	0000
2 1/4"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-341	1	000000000	0000
2 1/2"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-342	1	000000000	0000
2 3/4"	Partially Threaded	7/8"	Fine	1/2"	13/64"	70,000	Fed. Spec. FF-S-85, MS35308-343	1	000000000	0000
3/8"-24
5/8"	Fully Threaded	__	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-357	5	000000000	0000
3/4"	Fully Threaded	__	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-358	5	000000000	00000
7/8"	Fully Threaded	__	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-359	5	000000000	00000
1"	Fully Threaded	__	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-360	5	000000000	00000
1 1/8"	Fully Threaded	__	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-361	1	000000000	0000
1 1/4"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-362	1	000000000	0000
1 3/8"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-363	1	000000000	0000
1 1/2"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-364	1	000000000	0000
1 3/4"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-365	1	000000000	0000
2"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-366	1	000000000	0000
2 1/4"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-367	1	000000000	0000
2 1/2"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-368	1	000000000	0000
3"	Partially Threaded	1"	Fine	9/16"	15/64"	70,000	Fed. Spec. FF-S-85, MS35308-370	1	000000000	0000
1/2"-20
3/4"	Fully Threaded	__	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-407	1	000000000	0000
1"	Fully Threaded	__	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-409	1	000000000	0000
1 1/8"	Fully Threaded	__	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-410	1	000000000	0000
1 1/4"	Fully Threaded	__	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-411	1	000000000	0000
1 1/2"	Partially Threaded	1 1/4"	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-413	1	000000000	0000
1 3/4"	Partially Threaded	1 1/4"	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-414	1	000000000	0000
2"	Partially Threaded	1 1/4"	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-415	1	000000000	0000
2 1/4"	Partially Threaded	1 1/4"	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-416	1	000000000	0000
2 1/2"	Partially Threaded	1 1/4"	Fine	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-417	1	000000000	00000
2 3/4"	Partially Threaded	1 1/4"	Coarse	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-418	1	000000000	00000
3"	Partially Threaded	1 1/4"	Coarse	3/4"	5/16"	70,000	Fed. Spec. FF-S-85, MS35308-419	1	000000000	00000

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About Hex Head Screws and Bolts

Mil. Spec. 18-8 Stainless Steel Hex Head Screws