FNW FNWCSG2Z3812, FNWCSG2Z3834, FNWCSG2Z381, FNWCSG2Z38114, FNWCSG2Z38112 User Manual
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Page 1 of 1 Autocraft Product Standard REV-01
Hex Cap Screws, Grade 2/5
Hex Head Cap Screws
Grade 2/5, Zinc
Specication: ASME B18.2.1
Material & Mechanical Properties: Grade 2 / 5 per SAE J429
Thread Requirements: ASME B1.1, UNC
Finish: Fe/Zn 3AN per ASTM F1941/F1941M
Hex Head Cap Screws feature a washer
face under the head and a chamfered point,
whereas a Hex Bolt does not have a
washer face or chamfered threads.
Nominal
Size
or Basic
Product
Diameter
(in)
3/8 0.375 0.375 0.369 9/16 0.562 0.551 0.650 0.628 0.234 0.243 0.226 0.160 1.000 1.250 0.312 0.012
1/2 0.500 0.500 0.493 3/4 0.750 0.736 0.866 0.840 0.313 0.323 0.302 0.215 1.250 1.500 0.385 0.014
5/8 0.625 0.625 0.617 15/16 0.938 0.922 1.083 1.051 0.391 0.403 0.378 0.269 1.500 1.750 0.455 0.017
3/4 0.750 0.750 0.741 1-1/8 1.125 1.100 1.299 1.254 0.469 0.483 0.455 0.324 1.750 2.000 0.500 0.020
7/8 0.875 0.875 0.866 1 5/16 1.312 1.285 1.516 1.465 0.547 0.563 0.531 0.378 2.000 2.250 0.556 0.023
Identication Grade
Mark
E F G H J LT Y
Over
6"
Trans-
ition
Thread
Length
Bearing
Surface
(in)
Tensile Strength
Min (psi)
74,000
60,000
120,000
105,000
Runout
Body
Diameter
(in)
Max Min Basic Max Min Max Min Basic Max Min Min Nom Nom Ref Max
Specication
SAE J429
Grade 2
SAE J429
Grade 5
Width
Across
Flats
(in)
Fastener
Description
Bolts & Cap
Screws
Bolts & Cap
Screws
Width
Across
Corners
(in)
Material
Low or Medium
Carbon Steel
Medium Carbon
Steel, Quenched
& Tempered
Head
Height
(in)
Nominal Size
Range (in)
1/4 thru 3/4 over
3/4 thru 1-1/2
1/4 thru 3/4 over
3/4 thru 1-1/2
Wrenching
Height
(in)
Proof Load (psi)
55,000
33,000
85,000
74,000
Thread Length
(in)
6" and
less
Mechanicla Properties
Yield Strength
Min (psi)
57,000
36,000
92,000
81,000
Total
(in)
14
FNW.COM
Hex Head Cap Screws
GRADE 2
SKU
FNWCSG2Z3812
FNWCSG2Z3834 3/4 25
FNWCSG2Z381 1 25
FNWCSG2Z38114 1-1/4 25
FNWCSG2Z38112 1-1/2 25
FNWCSG2Z382 2 25
FNWCSG2Z38212 2-1/2 25
FNWCSG2Z383 3 25
FNWCSG2Z121
FNWCSG2Z12112 1-1/2 10
FNWCSG2Z122 2 10
FNWCSG2Z12212 2-1/2 4
FNWCSG2Z12234 2-3/4 4
FNWCSG2Z123 3 4
FNWCSG2Z58112
FNWCSG2Z58134 1-3/4 4
FNWCSG2Z582 2 4
FNWCSG2Z58214 2-1/4 4
FNWCSG2Z58212 2-1/2 4
FNWCSG2Z58234 2-3/4 4
FNWCSG2Z583 3 4
FNWCSG2Z58312 3-1/2 4
FNWCSG2Z584 4 4
FNWCSG2Z58412 4-1/2 2
FNWCSG2Z585 5 2
FNWCSG2Z34134
FNWCSG2Z342 2 4
FNWCSG2Z34214 2-1/4 4
FNWCSG2Z34212 2-1/2 4
FNWCSG2Z34234 2-3/4 4
FNWCSG2Z343 3 4
FNWCSG2Z34314 3-1/4 2
FNWCSG2Z34312 3-1/2 2
FNWCSG2Z34334 3-3/4 2
FNWCSG2Z344 4 2
FNWCSG2Z34412 4-1/2 2
FNWCSG2Z345 5 2
FNWCSG2Z34512 5-1/2 2
FNWCSG2Z78214
FNWCSG2Z78212 2-1/2 2
FNWCSG2Z78234 2-3/4 2
FNWCSG2Z783 3 2
FNWCSG2Z78312 3-1/2 2
FNWCSG2Z78334 3-3/4 2
FNWCSG2Z784 4 2
FNWCSG2Z78412 4-1/2 2
FNWCSG2Z78512 5-1/2 2
Diameter
(in)
3/8
1/2
5/8
3/4
7/8
L
Nominal
Length (in)
1/2 25
1 10
1-1/2 4
1-3/4 4
2-1/4 2
Pack Qty
GRADE 5
SKU
FNWCSG5Z381
FNWCSG5Z38114 1-1/4 25
FNWCSG5Z38112 1-1/2 25
FNWCSG5Z38212 2-1/2 25
FNWCSG5Z383 3 25
FNWCSG5Z384 4 25
FNWCSG5Z121
FNWCSG5Z12112 1-1/2 10
FNWCSG5Z122 2 10
FNWCSG5Z12212 2-1/2 4
FNWCSG5Z12312 3-1/2 4
FNWCSG5Z58112
FNWCSG5Z58134 1-3/4 4
FNWCSG5Z582 2 4
FNWCSG5Z58212 2-1/2 4
FNWCSG5Z58234 2-3/4 2
FNWCSG5Z583 3 2
FNWCSG5Z58312 3-1/2 4
FNWCSG5Z34134
FNWCSG5Z342 2 4
FNWCSG5Z34214 2-1/4 4
FNWCSG5Z34212 2-1/2 4
FNWCSG5Z343 3 4
FNWCSG5Z34312 3-1/2 2
FNWCSG5Z344 4 2
FNWCSG5Z34412 4-1/2 2
FNWCSG5Z78212
FNWCSG5Z783 3 2
FNWCSG5Z78312 3-1/2 2
FNWCSG5Z784 4 2
Diameter
(in)
3/8
1/2
5/8
3/4
7/8
L
Nominal
Length (in)
1 25
1 10
1-1/2 4
1-3/4 4
2-1/2 2
Pack Qty
FNW.COM
15
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