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(Non-preferred) dimensions in parentheses.

Unit:mm

Cup head square neck bolts with large head

GB 14 - 1976

Display drawing:

国标GB 14 - 1976 GB14 14GB Cup head square neck bolts with large head
Download CAD Model*

 *Models with different eras.

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
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Choose materials based on density.(g/cm3)

  • Carbon Steel 7.85
  • Stainless Steel 8.1
  • Stainless Steel 7.95
  • Stainless Steel 7.7
  • Titanium Alloy 4.5
  • Aluminum Alloy 2.8
  • Copper 8.89


Select here or enter material density on the calculation page.
Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.
Screw Thread
d
M6 M8 M10 M12 (M14) M16 M20 M24
P Pitch
dk Nominal Size
max
min
k Nominal Size
max
min
s Nominal Size
max
min
k1 Nominal Size
max
min
1.00 1.25 1.50 1.75 2.00 2.00 2.50 3.00
14 18 23 28 32 35 44 52
15.10 19.10 24.30 29.30 33.60 36.60 45.60 53.90
13.30 17.30 22.16 27.16 31.00 34.00 43.00 50.80
3 4 5 6 7 8 10 12
3.48 4.48 5.48 6.48 7.90 8.90 10.90 13.10
2.70 3.60 4.60 5.60 6.55 7.55 9.55 11.45
6 8 10 12 14 16 20 24
6.30 8.36 10.36 12.43 14.43 16.43 20.52 24.52
5.84 7.80 9.80 11.76 13.76 15.76 19.72 23.72
4 5 6 8 9 10 12 17
4.40 5.40 6.40 8.45 9.45 10.45 12.55 17.55
3.60 4.60 5.60 7.55 8.55 9.55 11.45 16.45
Weight of per 1000 steel products(≈kg)
- - - - - - - -
Length of Thread b
- - - - - - - -

Alternative history

GB 14 - 1976 GB /T 14 - 1988 GB /T 14 - 1998 GB /T 14 - 2013

Similar Standards

1 Mshroom head square neck bolts [DIN]
DIN 603 - 1981 		Mshroom head square neck bolts

View Suppliers
2 Cup Head Square Neck Bolts [DIN]
DIN 603 - 2017 		Cup Head Square Neck Bolts

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3 Mushroom head square neck bolts [DIN]
DIN 603 - 2010 		Mushroom head square neck bolts

View Suppliers
4 Step Bolts [ASME/ANSI]
ASME/ANSI B 18.5 - 2008 		Step Bolts
5 Agricultural Machinery - Flat Countersunk Square Neck Bolts With Short Square [DIN]
DIN 11015 - 1995 		Agricultural Machinery - Flat Countersunk Square Neck Bolts With Short Square
6 Cup Head Square Neck Bolts With Large Head-Product Grade C [ISO]
ISO 8677 - 1986 		Cup Head Square Neck Bolts With Large Head-Product Grade C
7 Step Bolts,(Inch Series) [ASME/ANSI]
ASME/ANSI B 18.5 - 2012 		Step Bolts,(Inch Series)
8 Metric round head square neck bolts with large head [ASME/ANSI]
ASME/ANSI B 18.5.2.3M - 1998 		Metric round head square neck bolts with large head
9 Step Bolts,(Inch Series) [ASME]
ASME B 18.5 - 2012 (2017) 		Step Bolts,(Inch Series)
10 Cup head square neck bolts（Large size） [JIS]
JIS B 1171 (Attached Table 1) - 1996 		Cup head square neck bolts（Large size）
11 Round Head Square Neck Bolts - JAPY Type [NF]
NF E 27-351 - 1969 		Round Head Square Neck Bolts - JAPY Type
12 Cup head square neck bolts with large head [GB]
GB /T 14 - 1998 		Cup head square neck bolts with large head
13 Cup square bolts with hexagon nut - ISO metric coarse thread - Finish C [UNI]
UNI 5732 - 1965 		Cup square bolts with hexagon nut - ISO metric coarse thread - Finish C
14 Cup square bolts and bolts with square nut - ISO metric coarse thread - Finish C [UNI]
UNI 5731 - 1965 		Cup square bolts and bolts with square nut - ISO metric coarse thread - Finish C
15 Mushroom Head Square Neck Bolts [GB]
GB /T 14 - 2013 		Mushroom Head Square Neck Bolts
16 Cup Head Square Bolts With Large Head - Grade C [GB]
GB /T 14 - 1988 		Cup Head Square Bolts With Large Head - Grade C
17 Metric Cup Square Bolts [BS]
BS 4933 - 1973 		Metric Cup Square Bolts
18 Increased cup head square shoulder bolts, product grade C [GOST]
GOST 7802 - 1981 		Increased cup head square shoulder bolts, product grade C
19 Cup Square Bolts [CNS]
CNS 4424 - 1981 		Cup Square Bolts
20 Cup Square Bolts With Enlarged Head For Looms [CNS]
CNS 4425 - 1981 		Cup Square Bolts With Enlarged Head For Looms
21 Cover Bolts Type A [CNS]
CNS 4574 - 1981 		Cover Bolts Type A