Phosphate-Coated Hex Head Screws

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100,000 psi or greater

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261 Products

About Hex Head Screws and Bolts

Fully Threaded

Partially Threaded

Choose these Class 10.9 steel screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.

Black-phosphate steel screws are mildly corrosion resistant in dry environments. Screws that meet ISO 898-1 or SAE J1199 comply with specifications and testing requirements for material quality. Screws that meet ASME B18.2.3.9M or DIN 6921 comply with specifications for dimensional standards.

				Head, mm
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Wd.	Ht.	Flange Dia., mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
Black-Phosphate Class 10.9 Steel
M5 × 0.8 mm
8	Fully Threaded	__	Coarse	8	5.4	11.8	150,000	ISO 898-1, DIN 6921	100	000000000	000000
10	Fully Threaded	__	Coarse	8	5.4	11.8	150,000	ISO 898-1, DIN 6921	100	000000000	00000
12	Fully Threaded	__	Coarse	8	5.4	11.8	150,000	ISO 898-1, DIN 6921	100	000000000	00000
14	Fully Threaded	__	Coarse	8	5.4	11.8	150,000	ISO 898-1, DIN 6921	100	000000000	00000
16	Fully Threaded	__	Coarse	8	5.4	11.8	150,000	ISO 898-1, DIN 6921	100	000000000	00000
20	Fully Threaded	__	Coarse	8	5.4	11.8	150,000	ISO 898-1, DIN 6921	100	000000000	00000
25	Partially Threaded	16	Coarse	8	5.4	11.8	150,000	ISO 898-1, DIN 6921	100	000000000	00000
M6 × 1 mm
8	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
10	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
12	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
14	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
16	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
18	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
20	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
22	Fully Threaded	__	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
25	Partially Threaded	18	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	100	000000000	00000
30	Partially Threaded	18	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	50	000000000	00000
35	Partially Threaded	18	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	50	000000000	00000
40	Partially Threaded	18	Coarse	10	6.6	14.2	150,000	ISO 898-1, DIN 6921	50	000000000	00000
M8 × 1.25 mm
10	Fully Threaded	__	Coarse	13	8.1	18	150,000	ISO 898-1, DIN 6921	50	000000000	00000
12	Fully Threaded	__	Coarse	13	8.1	18	150,000	ISO 898-1, DIN 6921	50	000000000	00000
14	Fully Threaded	__	Coarse	13	8.1	18	150,000	ISO 898-1, DIN 6921	50	000000000	00000
16	Fully Threaded	__	Coarse	13	8.1	18	150,000	ISO 898-1, DIN 6921	50	000000000	00000
18	Fully Threaded	__	Coarse	13	8.1	18	150,000	ISO 898-1, DIN 6921	50	000000000	00000
20	Fully Threaded	__	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	50	000000000	00000
22	Fully Threaded	__	Coarse	13	8.1	18	150,000	ISO 898-1, DIN 6921	50	000000000	00000
25	Fully Threaded	__	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	50	000000000	00000
30	Fully Threaded	__	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	50	000000000	00000
35	Partially Threaded	22	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	50	000000000	00000
40	Partially Threaded	22	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	50	000000000	00000
45	Partially Threaded	22	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	25	000000000	00000
50	Partially Threaded	22	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	25	000000000	00000
60	Partially Threaded	22	Coarse	13	8.1	18	150,000	ASME B18.2.3.9M, SAE J1199	25	000000000	00000
M10 × 1.5 mm
12	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	25	000000000	00000
16	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	25	000000000	00000
18	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	25	000000000	00000
20	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ASME B18.2.3.9M, SAE J1199	25	000000000	00000
22	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	25	000000000	00000
25	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ASME B18.2.3.9M, SAE J1199	25	000000000	00000
30	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ASME B18.2.3.9M, SAE J1199	25	000000000	00000
35	Fully Threaded	__	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	25	000000000	00000
40	Partially Threaded	26	Coarse	15	9.2	22.3	150,000	ASME B18.2.3.9M, SAE J1199	25	000000000	00000
45	Partially Threaded	26	Coarse	15	10.4	22.3	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	0000
50	Partially Threaded	26	Coarse	15	10.4	22.3	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
55	Partially Threaded	26	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	10	000000000	0000
60	Partially Threaded	26	Coarse	15	10.4	22.3	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
65	Partially Threaded	26	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	10	000000000	00000
70	Partially Threaded	26	Coarse	15	10.4	22.3	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
75	Partially Threaded	26	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	10	000000000	00000
80	Partially Threaded	26	Coarse	15	10.4	22.3	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
90	Partially Threaded	26	Coarse	15	10.4	22.3	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
100	Partially Threaded	26	Coarse	15	10.4	22.3	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
110	Partially Threaded	26	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	10	000000000	00000
120	Partially Threaded	26	Coarse	15	9.2	22.3	150,000	ISO 898-1, DIN 6921	10	000000000	00000
M12 × 1.75 mm
16	Fully Threaded	__	Coarse	16	11.5	26.6	150,000	ISO 898-1, DIN 6921	10	000000000	0000
20	Fully Threaded	__	Coarse	16	11.8	26.6	150,000	ISO 898-1, DIN 6921	10	000000000	0000
25	Fully Threaded	__	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
30	Fully Threaded	__	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
35	Fully Threaded	__	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
40	Fully Threaded	__	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
45	Partially Threaded	30	Coarse	16	11.8	26.6	150,000	ISO 898-1, DIN 6921	10	000000000	00000
50	Partially Threaded	30	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
60	Partially Threaded	30	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
70	Partially Threaded	30	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
75	Partially Threaded	30	Coarse	16	11.5	26.6	150,000	ISO 898-1, DIN 6921	10	000000000	00000
80	Partially Threaded	30	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	10	000000000	00000
90	Partially Threaded	30	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
100	Partially Threaded	30	Coarse	18	11.8	26.6	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
110	Partially Threaded	30	Coarse	16	11.5	26.6	150,000	ISO 898-1, DIN 6921	5	000000000	00000
120	Partially Threaded	30	Coarse	16	11.5	26.6	150,000	ISO 898-1, DIN 6921	5	000000000	00000
M14 × 2 mm
30	Fully Threaded	__	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	10	000000000	00000
35	Fully Threaded	__	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	5	000000000	0000
40	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	5	000000000	0000
45	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	5	000000000	0000
50	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	5	000000000	00000
60	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	5	000000000	00000
70	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	5	000000000	00000
80	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	1	000000000	0000
90	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	1	000000000	0000
100	Partially Threaded	34	Coarse	18	12.8	30.5	150,000	ISO 898-1, DIN 6921	1	000000000	0000
M16 × 2 mm
30	Fully Threaded	__	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
35	Fully Threaded	__	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
40	Fully Threaded	__	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
50	Fully Threaded	__	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
60	Partially Threaded	38	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
70	Partially Threaded	38	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
80	Partially Threaded	38	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
90	Partially Threaded	38	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	5	000000000	00000
100	Partially Threaded	38	Coarse	24	15.4	35	150,000	ASME B18.2.3.9M, SAE J1199	1	000000000	0000

High-Strength Grade 8 Steel Flanged Hex Head Screws

Fully Threaded

Partially Threaded

Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The flange distributes pressure where the screw meets the surface, so you don’t need a separate washer. For quick identification, their head is marked with six radial lines. Head height includes the flange. Length is measured from under the flange.

Black-phosphate steel screws are mildly corrosion resistant in dry environments.

Screws that meet ASME B18.6.3 or IFI 111 specifications are made to strict dimensional standards. Screws that meet SAE J429 specifications comply with testing standards for material quality.

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

				Head
Lg.	Threading	Min. Thread Lg.	Thread Spacing	Wd.	Ht.	Flange Dia.	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
Black-Phosphate Grade 8 Steel
10-24
1/2"	Fully Threaded	__	Coarse	5/16"	3/16"	29/64"	150,000	__	50	000000000	000000
3/4"	Fully Threaded	__	Coarse	5/16"	3/16"	29/64"	150,000	__	50	000000000	00000
1"	Fully Threaded	__	Coarse	5/16"	3/16"	29/64"	150,000	__	50	000000000	00000
10-32
3/8"	Fully Threaded	__	Fine	5/16"	3/16"	29/64"	150,000	__	50	000000000	00000
1/2"	Fully Threaded	__	Fine	5/16"	7/32"	29/64"	150,000	ASME B18.6.3	100	000000000	0000
3/4"	Fully Threaded	__	Fine	5/16"	7/32"	29/64"	150,000	ASME B18.6.3	100	000000000	00000
1"	Fully Threaded	__	Fine	5/16"	7/32"	29/64"	150,000	ASME B18.6.3	100	000000000	00000
1/4"-20
3/8"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1/2"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	0000
5/8"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	0000
3/4"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	00000
1"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	00000
1 1/4"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	00000
1 1/2"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	00000
1 3/4"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	00000
2"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	0000
2"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	00000
2 1/4"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	0000
2 1/2"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	0000
2 1/2"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 3/4"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	00000
3"	Fully Threaded	__	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	00000
3"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	00000
3 1/2"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	00000
4"	Partially Threaded	3/4"	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1/4"-28
3/4"	Fully Threaded	__	Fine	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	0000
1"	Fully Threaded	__	Fine	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	00000
5/16"-18
1/2"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	0000
5/8"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	10	000000000	0000
3/4"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	50	000000000	00000
7/8"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	10	000000000	0000
1"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 1/4"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 1/2"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 1/2"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 3/4"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2"	Fully Threaded	__	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 1/4"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 1/2"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 3/4"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	25	000000000	00000
3"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	10	000000000	0000
3 1/2"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	5	000000000	00000
4"	Partially Threaded	7/8"	Coarse	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	5	000000000	0000
5/16"-24
3/4"	Fully Threaded	__	Fine	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	50	000000000	00000
1"	Fully Threaded	__	Fine	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	5	000000000	0000
1 1/4"	Fully Threaded	__	Fine	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	5	000000000	0000
1 1/2"	Partially Threaded	7/8"	Fine	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	5	000000000	0000
2"	Partially Threaded	7/8"	Fine	1/2"	21/64"	11/16"	150,000	IFI 111, SAE J429	5	000000000	0000
3/8"-16
1/2"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	00000
5/8"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
3/4"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
7/8"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 1/8"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 1/4"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 1/2"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 3/4"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 3/4"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 1/4"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 1/2"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 1/2"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	0000
2 3/4"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	0000
3"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	0000
3 1/4"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	00000
3 1/2"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	5	000000000	0000
4"	Fully Threaded	__	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	00000
4"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	00000
4 1/2"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	1	000000000	0000
5"	Partially Threaded	1"	Coarse	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	10	000000000	00000
3/8"-24
3/4"	Fully Threaded	__	Fine	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1"	Fully Threaded	__	Fine	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	5	000000000	0000
1 1/4"	Fully Threaded	__	Fine	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1 1/2"	Fully Threaded	__	Fine	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	25	000000000	00000
2 1/2"	Partially Threaded	1"	Fine	9/16"	25/64"	13/16"	150,000	IFI 111, SAE J429	5	000000000	0000
7/16"-14
3/4"	Fully Threaded	__	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	25	000000000	00000
1"	Fully Threaded	__	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	10	000000000	0000
1 1/4"	Fully Threaded	__	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	5	000000000	0000
1 1/2"	Fully Threaded	__	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	10	000000000	00000
1 3/4"	Fully Threaded	__	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	10	000000000	0000
2"	Partially Threaded	1 1/8"	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	10	000000000	00000
2 1/4"	Partially Threaded	1 1/8"	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	10	000000000	00000
2 1/2"	Partially Threaded	1 1/8"	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	10	000000000	00000
2 3/4"	Partially Threaded	1 1/8"	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	10	000000000	00000
3"	Partially Threaded	1 1/8"	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	5	000000000	0000
3 1/2"	Partially Threaded	1 1/4"	Coarse	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	1	000000000	0000
7/16"-20
1"	Fully Threaded	__	Fine	5/8"	15/32"	15/16"	150,000	IFI 111, SAE J429	1	000000000	0000
1/2"-13
3/4"	Fully Threaded	__	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
1"	Fully Threaded	__	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	0000
1 1/4"	Fully Threaded	__	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	0000
1 1/2"	Fully Threaded	__	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
1 3/4"	Fully Threaded	__	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2"	Fully Threaded	__	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2 1/4"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2 1/2"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2 3/4"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
3"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
3 1/4"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
3 1/2"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
3 3/4"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	00000
4"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	0000
4 1/2"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	00000
5"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	00000
5 1/2"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	00000
6"	Partially Threaded	1 1/4"	Coarse	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	1	000000000	00000
1/2"-20
1"	Fully Threaded	__	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	0000
1 1/4"	Fully Threaded	__	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	0000
1 1/2"	Fully Threaded	__	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
1 3/4"	Fully Threaded	__	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2"	Partially Threaded	1 1/4"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2 1/4"	Partially Threaded	1 1/4"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2 1/2"	Partially Threaded	1 1/4"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2 3/4"	Partially Threaded	1 1/4"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	10	000000000	00000
3"	Partially Threaded	1 1/4"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	00000
3 1/2"	Partially Threaded	1 1/2"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	1	000000000	0000
4"	Partially Threaded	1 1/4"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	00000
4 1/2"	Partially Threaded	1 1/2"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	1	000000000	0000
5"	Partially Threaded	1 1/4"	Fine	3/4"	33/64"	1 5/64"	150,000	IFI 111, SAE J429	5	000000000	00000
5/8"-11
1"	Fully Threaded	__	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
1 1/4"	Fully Threaded	__	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	10	000000000	00000
1 1/2"	Fully Threaded	__	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	10	000000000	00000
1 3/4"	Fully Threaded	__	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	10	000000000	00000
2"	Fully Threaded	__	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
2 1/4"	Fully Threaded	__	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
2 1/2"	Fully Threaded	__	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
2 3/4"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
3"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
3 1/4"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
3 1/2"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
3 3/4"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
4"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
4 1/4"	Partially Threaded	1 5/8"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
4 1/2"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
5"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
5 1/2"	Partially Threaded	1 3/4"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
6"	Partially Threaded	1 1/2"	Coarse	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
5/8"-18
1 1/2"	Fully Threaded	__	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	0000
1 3/4"	Fully Threaded	__	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
2"	Fully Threaded	__	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
2 1/4"	Fully Threaded	__	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
2 1/2"	Fully Threaded	__	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
2 3/4"	Partially Threaded	1 7/8"	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
3"	Partially Threaded	1 1/2"	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	5	000000000	00000
3 1/2"	Partially Threaded	1 5/8"	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
4"	Partially Threaded	1 1/2"	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
4 1/2"	Partially Threaded	2 1/8"	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
5"	Partially Threaded	2 1/4"	Fine	15/16"	5/8"	1 21/64"	150,000	IFI 111, SAE J429	1	000000000	0000
3/4"-10
1 1/4"	Fully Threaded	__	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
1 1/2"	Fully Threaded	__	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
1 3/4"	Fully Threaded	__	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2"	Partially Threaded	1 3/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2 1/4"	Fully Threaded	__	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2 1/2"	Fully Threaded	__	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2 3/4"	Fully Threaded	__	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
3"	Partially Threaded	1 3/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
3 1/4"	Partially Threaded	2 1/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
3 1/2"	Partially Threaded	1 3/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
4"	Partially Threaded	1 3/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
4 1/2"	Partially Threaded	2 1/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
5"	Partially Threaded	1 3/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
6"	Partially Threaded	1 3/4"	Coarse	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	00000
3/4"-16
1 3/4"	Fully Threaded	__	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2"	Fully Threaded	__	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2 1/4"	Partially Threaded	1 3/4"	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2 1/2"	Fully Threaded	__	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
2 3/4"	Fully Threaded	__	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	00000
3"	Partially Threaded	1 3/4"	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	0000
3 1/2"	Partially Threaded	1 3/4"	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	00000
4"	Partially Threaded	1 3/4"	Fine	1 1/8"	47/64"	1 19/32"	150,000	IFI 111, SAE J429	1	000000000	00000

High-Strength Grade 8 Steel Serrated-Flange Hex Head Screws

Made from Grade 8 steel, these screws are at least 25% stronger than medium-strength steel screws. They can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Serrations under the head grip the surface of your material to help resist vibration. The flange distributes pressure where the screw meets the surface, so you don’t need a separate washer. All screws meet IFI specifications for dimensions and SAE specifications for material quality. For quick identification, their head is marked with six radial lines. Head height includes the flange. Length is measured from under the flange.

Black-phosphate steel screws are mildly corrosion resistant in dry environments.

			Head
Lg.	Threading	Thread Spacing	Wd.	Ht.	Flange Dia.	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
Black-Phosphate Grade 8 Steel
1/4"-20
1/2"	Fully Threaded	Coarse	3/8"	9/32"	9/16"	150,000	IFI 111, SAE J429	50	000000000	000000

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About Hex Head Screws and Bolts

High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

High-Strength Grade 8 Steel Flanged Hex Head Screws

High-Strength Grade 8 Steel Serrated-Flange Hex Head Screws