Home / UNC Bolts, Nuts and Washers / 5/8 inch UNC 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 UNC 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 section of the shaft. A hex drive permits a greater torque load to be applied to the joint over most other drive types.

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

technical drawing of UNC Hex Head Bolts ASME B18.2.1

Technical Summary

nominal diameter

5/8

tpi

threads per inch

b nom. (inch)

nominal thread length

1.500

k max. (inch)

head height

0.444

s max. (inch)

drive size

0.938

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet

< View All Sizes

Description	Sale Qtys	Price
Hex Bolt Part Thread UNC 5/8 x 2-1/4 inch in BZP Grade 5 Steel WF28422 - 410 in stock	single bolt for £2.14 or box of 15 for £23.49 or bulk of 75 for £102.25	£0.00
Hex Bolt Part Thread UNC 5/8 x 2-1/2 inch in BZP Grade 5 Steel WF28423 - 34 in stock	single bolt for £1.79 or box of 6 for £8.27 or bulk of 30 for £36.39	£0.00
Hex Bolt Part Thread UNC 5/8 x 2-3/4 inch in BZP Grade 5 Steel WF28424 - 19 in stock	single bolt for £1.86 or box of 15 for £20.10 or bulk of 75 for £86.57	£0.00
Hex Bolt Part Thread UNC 5/8 x 3 inch in BZP Grade 5 Steel WF28425 - 25 in stock	single bolt for £2.67 or box of 10 for £19.83 or bulk of 50 for £86.16	£0.00
Hex Bolt Part Thread UNC 5/8 x 3-1/4 inch in BZP Grade 5 Steel WF28426 - 4 in stock	single bolt for £2.40 or box of 15 for £25.81 or bulk of 75 for £111.84	£0.00
Hex Bolt Part Thread UNC 5/8 x 3-1/2 inch in BZP Grade 5 Steel WF28427 - 19 in stock	single bolt for £1.94 or box of 10 for £14.19 or bulk of 50 for £60.50	£0.00
Hex Bolt Part Thread UNC 5/8 x 3-3/4 inch in BZP Grade 5 Steel WF28428 - 35 in stock	single bolt for £3.19 or box of 8 for £19.97 or bulk of 40 for £86.89	£0.00
Hex Bolt Part Thread UNC 5/8 x 4 inch in BZP Grade 5 Steel WF28429 - 14 in stock	single bolt for £2.30 or box of 6 for £10.66 or bulk of 30 for £45.12	£0.00
Hex Bolt Part Thread UNC 5/8 x 4-1/4 inch in BZP Grade 5 Steel WF28430 - 16 in stock	single bolt for £4.18 or box of 5 for £17.93 or bulk of 25 for £78.26	£0.00
Hex Bolt Part Thread UNC 5/8 x 4-1/2 inch in BZP Grade 5 Steel WF28431 - 35 in stock	single bolt for £4.83 or box of 5 for £21.24 or bulk of 25 for £92.86	£0.00
Hex Bolt Part Thread UNC 5/8 x 4-3/4 inch in BZP Grade 5 Steel WF28432 - 22 in stock	single bolt for £3.30 or box of 5 for £13.32 or bulk of 25 for £57.09	£0.00
Hex Bolt Part Thread UNC 5/8 x 5 inch in BZP Grade 5 Steel WF28433 - 89 in stock	single bolt for £3.17 or box of 8 for £19.97 or bulk of 40 for £86.98	£0.00
Hex Bolt Part Thread UNC 5/8 x 5-1/4 inch in BZP Grade 5 Steel WF28434 - 18 in stock	single bolt for £5.26 or box of 4 for £18.77 or bulk of 20 for £82.25	£0.00
Hex Bolt Part Thread UNC 5/8 x 5-1/2 inch in BZP Grade 5 Steel WF28435 - expected in 6 to 9 days	single bolt for £5.45 or box of 4 for £19.53 or bulk of 20 for £85.45	£0.00
Hex Bolt Part Thread UNC 5/8 x 6 inch in BZP Grade 5 Steel WF28437 - 26 in stock	single bolt for £5.08 or box of 4 for £17.96 or bulk of 20 for £77.97	£0.00
Hex Bolt Part Thread UNC 5/8 x 6-1/2 inch in BZP Grade 5 Steel WF28438 - 6 in stock	single bolt for £4.38 or box of 5 for £18.34 or bulk of 25 for £79.49	£0.00
Hex Bolt Part Thread UNC 5/8 x 7-1/2 inch in BZP Grade 5 Steel WF28440 - expected in 11 to 17 days	single bolt for £7.92 or box of 3 for £22.29 or bulk of 15 for £97.93	£0.00
Hex Bolt Part Thread UNC 5/8 x 10inch in BZP Grade 5 Steel WF43040 - 7 in stock	single bolt for £17.47	£0.00
Hex Bolt Part Thread UNC 5/8 x 11inch in BZP Grade 5 Steel WF43042 - expected in 6 to 9 days	single bolt for £24.69	£0.00

Hex Bolt Part Thread UNC 5/8 x 2-1/4 inch in BZP Grade 5 Steel
WF28422 - 410 in stock

single bolt for £2.14
or box of 15 for £23.49
or bulk of 75 for £102.25

£0.00

Hex Bolt Part Thread UNC 5/8 x 2-1/2 inch in BZP Grade 5 Steel
WF28423 - 34 in stock

single bolt for £1.79
or box of 6 for £8.27
or bulk of 30 for £36.39

£0.00

Hex Bolt Part Thread UNC 5/8 x 2-3/4 inch in BZP Grade 5 Steel
WF28424 - 19 in stock

single bolt for £1.86
or box of 15 for £20.10
or bulk of 75 for £86.57

£0.00

Hex Bolt Part Thread UNC 5/8 x 3 inch in BZP Grade 5 Steel
WF28425 - 25 in stock

single bolt for £2.67
or box of 10 for £19.83
or bulk of 50 for £86.16

£0.00

Hex Bolt Part Thread UNC 5/8 x 3-1/4 inch in BZP Grade 5 Steel
WF28426 - 4 in stock

single bolt for £2.40
or box of 15 for £25.81
or bulk of 75 for £111.84

£0.00

Hex Bolt Part Thread UNC 5/8 x 3-1/2 inch in BZP Grade 5 Steel
WF28427 - 19 in stock

single bolt for £1.94
or box of 10 for £14.19
or bulk of 50 for £60.50

£0.00

Hex Bolt Part Thread UNC 5/8 x 3-3/4 inch in BZP Grade 5 Steel
WF28428 - 35 in stock

single bolt for £3.19
or box of 8 for £19.97
or bulk of 40 for £86.89

£0.00

Hex Bolt Part Thread UNC 5/8 x 4 inch in BZP Grade 5 Steel
WF28429 - 14 in stock

single bolt for £2.30
or box of 6 for £10.66
or bulk of 30 for £45.12

£0.00

Hex Bolt Part Thread UNC 5/8 x 4-1/4 inch in BZP Grade 5 Steel
WF28430 - 16 in stock

single bolt for £4.18
or box of 5 for £17.93
or bulk of 25 for £78.26

£0.00

Hex Bolt Part Thread UNC 5/8 x 4-1/2 inch in BZP Grade 5 Steel
WF28431 - 35 in stock

single bolt for £4.83
or box of 5 for £21.24
or bulk of 25 for £92.86

£0.00

Hex Bolt Part Thread UNC 5/8 x 4-3/4 inch in BZP Grade 5 Steel
WF28432 - 22 in stock

single bolt for £3.30
or box of 5 for £13.32
or bulk of 25 for £57.09

£0.00

Hex Bolt Part Thread UNC 5/8 x 5 inch in BZP Grade 5 Steel
WF28433 - 89 in stock

single bolt for £3.17
or box of 8 for £19.97
or bulk of 40 for £86.98

£0.00

Hex Bolt Part Thread UNC 5/8 x 5-1/4 inch in BZP Grade 5 Steel
WF28434 - 18 in stock

single bolt for £5.26
or box of 4 for £18.77
or bulk of 20 for £82.25

£0.00

Hex Bolt Part Thread UNC 5/8 x 5-1/2 inch in BZP Grade 5 Steel
WF28435 - expected in 6 to 9 days

single bolt for £5.45
or box of 4 for £19.53
or bulk of 20 for £85.45

£0.00

Hex Bolt Part Thread UNC 5/8 x 6 inch in BZP Grade 5 Steel
WF28437 - 26 in stock

single bolt for £5.08
or box of 4 for £17.96
or bulk of 20 for £77.97

£0.00

Hex Bolt Part Thread UNC 5/8 x 6-1/2 inch in BZP Grade 5 Steel
WF28438 - 6 in stock

single bolt for £4.38
or box of 5 for £18.34
or bulk of 25 for £79.49

£0.00

Hex Bolt Part Thread UNC 5/8 x 7-1/2 inch in BZP Grade 5 Steel
WF28440 - expected in 11 to 17 days

single bolt for £7.92
or box of 3 for £22.29
or bulk of 15 for £97.93

£0.00

Hex Bolt Part Thread UNC 5/8 x 10inch in BZP Grade 5 Steel
WF43040 - 7 in stock

single bolt for £17.47

£0.00

Hex Bolt Part Thread UNC 5/8 x 11inch in BZP Grade 5 Steel
WF43042 - expected in 6 to 9 days

single bolt for £24.69

£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

b nom. (inch)

nominal thread length

1.500

k max. (inch)

head height

0.444

s max. (inch)

drive size

0.938

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet