Home / UNC Bolts, Nuts and Washers / 1/2 inch UNC Hex Head Setscrews ASME B18.2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

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1/2 inch UNC Hex Head Setscrews ASME B18.2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

Commonly referred to as a setscrew and longer versions are referred to in the United States as a tap bolt. A standard spanner or ratchet is typically used to fit this product. Used for decades on all types of assembly throughout the world. The hex drive allows a higher torque to be applied. Produced to ASME B18.2.1.

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

technical drawing of UNC Hex Head Setscrews ASME B18.2.1

Technical Summary

nominal diameter

1/2

tpi

threads per inch

head height

0.323

drive size

0.750

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet

< View All Sizes

Description	Sale Qtys	Price
Hex Bolt Full Thread UNC 1/2 x 3/4 inch in BZP Grade 5 Steel WF28372 - 457 in stock	single bolt for £2.71 or box of 30 for £21.03 or bulk of 150 for £93.65	£0.00
Hex Bolt Full Thread UNC 1/2 x 7/8 inch in BZP Grade 5 Steel WF28373 - 465 in stock	single bolt for £2.60 or box of 40 for £22.04 or bulk of 200 for £98.00	£0.00
Hex Bolt Full Thread UNC 1/2 x 1 inch in BZP Grade 5 Steel WF28374 - 118 in stock	single bolt for £2.84 or box of 30 for £24.74 or bulk of 150 for £110.89	£0.00
Hex Bolt Full Thread UNC 1/2 x 1-1/8 inch in BZP Grade 5 Steel WF28375 - 44 in stock	single bolt for £2.90 or box of 20 for £18.06 or bulk of 100 for £81.21	£0.00
Hex Bolt Full Thread UNC 1/2 x 1-1/4 inch in BZP Grade 5 Steel WF28376 - 68 in stock	single bolt for £2.99 or box of 20 for £20.03 or bulk of 100 for £90.02	£0.00
Hex Bolt Full Thread UNC 1/2 x 1-3/8 inch in BZP Grade 5 Steel WF28377 - 446 in stock	single bolt for £2.82 or box of 30 for £23.59 or bulk of 150 for £105.26	£0.00
Hex Bolt Full Thread UNC 1/2 x 1-1/2 inch in BZP Grade 5 Steel WF30094 - 90 in stock	single bolt for £3.54 or box of 15 for £24.09 or bulk of 75 for £109.85	£0.00
Hex Bolt Full Thread UNC 1/2 x 1-5/8 inch in BZP Grade 5 Steel WF28379 - 298 in stock	single bolt for £2.82 or box of 30 for £23.53 or bulk of 150 for £104.76	£0.00
Hex Bolt Full Thread UNC 1/2 x 1-3/4 inch in BZP Grade 5 Steel WF30095 - 2876 in stock	single bolt for £2.72 or box of 30 for £19.97 or bulk of 150 for £88.16	£0.00
Hex Bolt Full Thread UNC 1/2 x 2 inch in BZP Grade 5 Steel WF30096 - 72 in stock	single bolt for £4.32 or box of 30 for £68.98 or bulk of 150 for £331.19	£0.00
Hex Bolt Full Thread UNC 1/2 x 2-1/4 inch in BZP Grade 5 Steel WF30097 - 48 in stock	single bolt for £4.19 or box of 8 for £18.40 or bulk of 40 for £84.96	£0.00
Hex Bolt Full Thread UNC 1/2 x 2-1/2 inch in BZP Grade 5 Steel WF30098 - 26 in stock	single bolt for £3.25 or box of 15 for £19.15 or bulk of 75 for £84.91	£0.00
Hex Bolt Full Thread UNC 1/2 x 2-3/4 inch in BZP Grade 5 Steel WF30099 - 422 in stock	single bolt for £5.40 or box of 5 for £18.12 or bulk of 25 for £84.69	£0.00
Hex Bolt Full Thread UNC 1/2 x 3 inch in BZP Grade 5 Steel WF30100 - 50 in stock	single bolt for £6.11 or box of 4 for £17.61 or bulk of 20 for £82.74	£0.00
Hex Bolt Full Thread UNC 1/2 x 3-1/2 inch in BZP Grade 5 Steel WF30101 - 40 in stock	single bolt for £3.77 or box of 10 for £18.50 or bulk of 50 for £82.78	£0.00
Hex Bolt Full Thread UNC 1/2 x 4 inch in BZP Grade 5 Steel WF30102 - 33 in stock	single bolt for £6.33 or box of 4 for £18.54 or bulk of 20 for £86.45	£0.00
Hex Bolt Full Thread UNC 1/2 x 4-1/2 inch in BZP Grade 5 Steel WF30103 - 18 in stock	single bolt for £4.88 or box of 6 for £18.25 or bulk of 30 for £83.31	£0.00
Hex Bolt Full Thread UNC 1/2 x 5 inch in BZP Grade 5 Steel WF30104 - 34 in stock	single bolt for £7.07 or box of 4 for £21.80 or bulk of 20 for £100.96	£0.00
Hex Bolt Full Thread UNC 1/2 x 5-1/2 inch in BZP Grade 5 Steel WF30105 - 13 in stock	single bolt for £7.37 or box of 5 for £28.64 or bulk of 25 for £132.61	£0.00
Hex Bolt Full Thread UNC 1/2 x 6 inch in BZP Grade 5 Steel WF30106 - 40 in stock	single bolt for £6.89 or box of 4 for £20.99 or bulk of 20 for £96.64	£0.00

Hex Bolt Full Thread UNC 1/2 x 3/4 inch in BZP Grade 5 Steel
WF28372 - 457 in stock

single bolt for £2.71
or box of 30 for £21.03
or bulk of 150 for £93.65

£0.00

Hex Bolt Full Thread UNC 1/2 x 7/8 inch in BZP Grade 5 Steel
WF28373 - 465 in stock

single bolt for £2.60
or box of 40 for £22.04
or bulk of 200 for £98.00

£0.00

Hex Bolt Full Thread UNC 1/2 x 1 inch in BZP Grade 5 Steel
WF28374 - 118 in stock

single bolt for £2.84
or box of 30 for £24.74
or bulk of 150 for £110.89

£0.00

Hex Bolt Full Thread UNC 1/2 x 1-1/8 inch in BZP Grade 5 Steel
WF28375 - 44 in stock

single bolt for £2.90
or box of 20 for £18.06
or bulk of 100 for £81.21

£0.00

Hex Bolt Full Thread UNC 1/2 x 1-1/4 inch in BZP Grade 5 Steel
WF28376 - 68 in stock

single bolt for £2.99
or box of 20 for £20.03
or bulk of 100 for £90.02

£0.00

Hex Bolt Full Thread UNC 1/2 x 1-3/8 inch in BZP Grade 5 Steel
WF28377 - 446 in stock

single bolt for £2.82
or box of 30 for £23.59
or bulk of 150 for £105.26

£0.00

Hex Bolt Full Thread UNC 1/2 x 1-1/2 inch in BZP Grade 5 Steel
WF30094 - 90 in stock

single bolt for £3.54
or box of 15 for £24.09
or bulk of 75 for £109.85

£0.00

Hex Bolt Full Thread UNC 1/2 x 1-5/8 inch in BZP Grade 5 Steel
WF28379 - 298 in stock

single bolt for £2.82
or box of 30 for £23.53
or bulk of 150 for £104.76

£0.00

Hex Bolt Full Thread UNC 1/2 x 1-3/4 inch in BZP Grade 5 Steel
WF30095 - 2876 in stock

single bolt for £2.72
or box of 30 for £19.97
or bulk of 150 for £88.16

£0.00

Hex Bolt Full Thread UNC 1/2 x 2 inch in BZP Grade 5 Steel
WF30096 - 72 in stock

single bolt for £4.32
or box of 30 for £68.98
or bulk of 150 for £331.19

£0.00

Hex Bolt Full Thread UNC 1/2 x 2-1/4 inch in BZP Grade 5 Steel
WF30097 - 48 in stock

single bolt for £4.19
or box of 8 for £18.40
or bulk of 40 for £84.96

£0.00

Hex Bolt Full Thread UNC 1/2 x 2-1/2 inch in BZP Grade 5 Steel
WF30098 - 26 in stock

single bolt for £3.25
or box of 15 for £19.15
or bulk of 75 for £84.91

£0.00

Hex Bolt Full Thread UNC 1/2 x 2-3/4 inch in BZP Grade 5 Steel
WF30099 - 422 in stock

single bolt for £5.40
or box of 5 for £18.12
or bulk of 25 for £84.69

£0.00

Hex Bolt Full Thread UNC 1/2 x 3 inch in BZP Grade 5 Steel
WF30100 - 50 in stock

single bolt for £6.11
or box of 4 for £17.61
or bulk of 20 for £82.74

£0.00

Hex Bolt Full Thread UNC 1/2 x 3-1/2 inch in BZP Grade 5 Steel
WF30101 - 40 in stock

single bolt for £3.77
or box of 10 for £18.50
or bulk of 50 for £82.78

£0.00

Hex Bolt Full Thread UNC 1/2 x 4 inch in BZP Grade 5 Steel
WF30102 - 33 in stock

single bolt for £6.33
or box of 4 for £18.54
or bulk of 20 for £86.45

£0.00

Hex Bolt Full Thread UNC 1/2 x 4-1/2 inch in BZP Grade 5 Steel
WF30103 - 18 in stock

single bolt for £4.88
or box of 6 for £18.25
or bulk of 30 for £83.31

£0.00

Hex Bolt Full Thread UNC 1/2 x 5 inch in BZP Grade 5 Steel
WF30104 - 34 in stock

single bolt for £7.07
or box of 4 for £21.80
or bulk of 20 for £100.96

£0.00

Hex Bolt Full Thread UNC 1/2 x 5-1/2 inch in BZP Grade 5 Steel
WF30105 - 13 in stock

single bolt for £7.37
or box of 5 for £28.64
or bulk of 25 for £132.61

£0.00

Hex Bolt Full Thread UNC 1/2 x 6 inch in BZP Grade 5 Steel
WF30106 - 40 in stock

single bolt for £6.89
or box of 4 for £20.99
or bulk of 20 for £96.64

£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

1/2

tpi

threads per inch

head height

0.323

drive size

0.750

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet