Home / UNF Bolts, Nuts and Washers / 5/8 inch UNF Hex Head Bolts ASME B18. 2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

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5/8 inch UNF Hex Head Bolts ASME B18. 2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

The most common type of fastener, a hex head bolt is designed to be tightened with a standard spanner or ratchet and socket. Popularly used in all assemblies, a standard hex bolt is a staple across the world. Manufactured to ASME B18. 2.1, and includes an unthreaded 'shoulder' or portion of the shank. A hex drive permits a greater torque load to be applied to the joint over most other drive types.

Image of UNF Hex Head Bolts ASME B18. 2.1 in BZP-G5 image

technical drawing of UNF Hex Head Bolts ASME B18. 2.1

Technical Summary

nominal diameter

5/8

tpi

threads per inch

s max. (inch)

drive size

0.938

k max. (inch)

head height

0.444

b nom. (inch)

nominal thread length

1.500

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet

< View All Sizes

Description	Sale Qtys	Price
Hex Bolt Part Thread UNF 5/8 x 2-1/4 inch in BZP Grade 5 Steel WF28131 - 40 in stock	single bolt for £4.93 or box of 15 for £60.44 or bulk of 75 for £285.71	£0.00
Hex Bolt Part Thread UNF 5/8 x 2-1/2 inch in BZP Grade 5 Steel WF28132 - 32 in stock	single bolt for £1.46 or box of 20 for £20.52 or bulk of 100 for £87.69	£0.00
Hex Bolt Part Thread UNF 5/8 x 2-3/4 inch in BZP Grade 5 Steel WF28133 - 44 in stock	single bolt for £4.68 or box of 5 for £20.51 or bulk of 25 for £92.51	£0.00
Hex Bolt Part Thread UNF 5/8 x 3 inch in BZP Grade 5 Steel WF28134 - 40 in stock	single bolt for £1.88 or box of 15 for £20.10 or bulk of 75 for £86.27	£0.00
Hex Bolt Part Thread UNF 5/8 x 3-1/4 inch in BZP Grade 5 Steel WF28135 - 25 in stock	single bolt for £2.41 or box of 2 for £3.70 or bulk of 10 for £17.77	£0.00
Hex Bolt Part Thread UNF 5/8 x 3-1/2 inch in BZP Grade 5 Steel WF28136 - 12 in stock	single bolt for £8.43 or box of 3 for £23.87 or bulk of 15 for £108.08	£0.00
Hex Bolt Part Thread UNF 5/8 x 3-3/4 inch in BZP Grade 5 Steel WF28137 - 84 in stock	single bolt for £3.12 or box of 8 for £19.31 or bulk of 40 for £83.84	£0.00
Hex Bolt Part Thread UNF 5/8 x 4 inch in BZP Grade 5 Steel WF28138 - 16 in stock	single bolt for £6.25 or box of 3 for £17.14 or bulk of 15 for £77.37	£0.00
Hex Bolt Part Thread UNF 5/8 x 4-1/2 inch in BZP Grade 5 Steel WF28139 - 30 in stock	single bolt for £3.53 or box of 4 for £11.65 or bulk of 20 for £50.89	£0.00
Hex Bolt Part Thread UNF 5/8 x 4-3/4 inch in BZP Grade 5 Steel WF28140 - 11 in stock	single bolt for £3.53 or box of 6 for £17.04 or bulk of 30 for £73.79	£0.00
Hex Bolt Part Thread UNF 5/8 x 5 inch in BZP Grade 5 Steel WF28141 - 10 in stock	single bolt for £3.72 or box of 6 for £18.16 or bulk of 30 for £78.74	£0.00
Hex Bolt Part Thread UNF 5/8 x 5-1/2 inch in BZP Grade 5 Steel WF28142 - 16 in stock	single bolt for £7.78 or box of 3 for £21.83 or bulk of 15 for £97.31	£0.00
Hex Bolt Part Thread UNF 5/8 x 6 inch in BZP Grade 5 Steel WF28143 - 5 in stock	single bolt for £9.83 or box of 4 for £36.39 or bulk of 20 for £168.58	£0.00
Hex Bolt Part Thread UNF 5/8 x 6-1/2 inch in BZP Grade 5 Steel WF28144 - 18 in stock	single bolt for £5.40 or box of 4 for £19.16 or bulk of 20 for £83.38	£0.00
Hex Bolt Part Thread UNF 5/8 x 7inch in BZP Grade 5 Steel WF43156 - 12 in stock	single bolt for £13.94 or box of 2 for £27.06 or bulk of 10 for £122.55	£0.00

Hex Bolt Part Thread UNF 5/8 x 2-1/4 inch in BZP Grade 5 Steel
WF28131 - 40 in stock

single bolt for £4.93
or box of 15 for £60.44
or bulk of 75 for £285.71

£0.00

Hex Bolt Part Thread UNF 5/8 x 2-1/2 inch in BZP Grade 5 Steel
WF28132 - 32 in stock

single bolt for £1.46
or box of 20 for £20.52
or bulk of 100 for £87.69

£0.00

Hex Bolt Part Thread UNF 5/8 x 2-3/4 inch in BZP Grade 5 Steel
WF28133 - 44 in stock

single bolt for £4.68
or box of 5 for £20.51
or bulk of 25 for £92.51

£0.00

Hex Bolt Part Thread UNF 5/8 x 3 inch in BZP Grade 5 Steel
WF28134 - 40 in stock

single bolt for £1.88
or box of 15 for £20.10
or bulk of 75 for £86.27

£0.00

Hex Bolt Part Thread UNF 5/8 x 3-1/4 inch in BZP Grade 5 Steel
WF28135 - 25 in stock

single bolt for £2.41
or box of 2 for £3.70
or bulk of 10 for £17.77

£0.00

Hex Bolt Part Thread UNF 5/8 x 3-1/2 inch in BZP Grade 5 Steel
WF28136 - 12 in stock

single bolt for £8.43
or box of 3 for £23.87
or bulk of 15 for £108.08

£0.00

Hex Bolt Part Thread UNF 5/8 x 3-3/4 inch in BZP Grade 5 Steel
WF28137 - 84 in stock

single bolt for £3.12
or box of 8 for £19.31
or bulk of 40 for £83.84

£0.00

Hex Bolt Part Thread UNF 5/8 x 4 inch in BZP Grade 5 Steel
WF28138 - 16 in stock

single bolt for £6.25
or box of 3 for £17.14
or bulk of 15 for £77.37

£0.00

Hex Bolt Part Thread UNF 5/8 x 4-1/2 inch in BZP Grade 5 Steel
WF28139 - 30 in stock

single bolt for £3.53
or box of 4 for £11.65
or bulk of 20 for £50.89

£0.00

Hex Bolt Part Thread UNF 5/8 x 4-3/4 inch in BZP Grade 5 Steel
WF28140 - 11 in stock

single bolt for £3.53
or box of 6 for £17.04
or bulk of 30 for £73.79

£0.00

Hex Bolt Part Thread UNF 5/8 x 5 inch in BZP Grade 5 Steel
WF28141 - 10 in stock

single bolt for £3.72
or box of 6 for £18.16
or bulk of 30 for £78.74

£0.00

Hex Bolt Part Thread UNF 5/8 x 5-1/2 inch in BZP Grade 5 Steel
WF28142 - 16 in stock

single bolt for £7.78
or box of 3 for £21.83
or bulk of 15 for £97.31

£0.00

Hex Bolt Part Thread UNF 5/8 x 6 inch in BZP Grade 5 Steel
WF28143 - 5 in stock

single bolt for £9.83
or box of 4 for £36.39
or bulk of 20 for £168.58

£0.00

Hex Bolt Part Thread UNF 5/8 x 6-1/2 inch in BZP Grade 5 Steel
WF28144 - 18 in stock

single bolt for £5.40
or box of 4 for £19.16
or bulk of 20 for £83.38

£0.00

Hex Bolt Part Thread UNF 5/8 x 7inch in BZP Grade 5 Steel
WF43156 - 12 in stock

single bolt for £13.94
or box of 2 for £27.06
or bulk of 10 for £122.55

£0.00

Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.

Technical Summary

nominal diameter

5/8

tpi

threads per inch

s max. (inch)

drive size

0.938

k max. (inch)

head height

0.444

b nom. (inch)

nominal thread length

1.500

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet