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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Cup head nib bolts

GB 13 - 1976

Display drawing:

国标GB 13 - 1976 GB13 13GB Cup head nib bolts
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
max
ds Nominal Size
max
min
h1 Nominal Size
max
min
s Nominal Size
max
min
h ≥
r
1.00 1.25 1.50 1.75 2.00 2.00 2.50 3.00
11 14 17 21 24 28 34 42
12.10 15.10 18.10 22.30 25.30 29.30 35.60 43.60
10.30 13.30 16.30 20.16 23.16 27.16 33.00 41.00
3.6 4.8 6 8 9 10 12 16
4.08 5.28 6.48 8.90 9.90 10.90 13.10 17.10
3.20 4.40 5.60 7.55 8.55 9.55 11.45 15.45
6 8 10 12 14 16 20 24
6.48 8.58 10.58 12.70 14.70 16.70 20.84 24.84
5.52 7.42 9.42 11.30 13.30 15.30 19.16 23.16
2.5 3 3.5 4 5 5 6 7
2.70 3.20 3.80 4.30 5.30 5.30 6.30 7.40
2.30 2.80 3.20 3.70 4.70 4.70 5.70 6.60
2.5 2.5 3.5 3.5 4.5 4.5 4.5 6
2.70 2.70 3.80 3.80 4.80 4.80 4.80 6.30
2.30 2.30 3.20 3.2 4.20 4.20 4.20 5.70
4 5 6 7 8 9 11 13
6 7.5 9 11 13 15 18 22
Weight of per 1000 steel products(≈kg)
- - - - - - - -
Length of Thread b
- - - - - - - -

Alternative history

GB 13 - 1976 GB /T 13 - 1988 GB /T 13 - 2013
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Similar Standards

1 Round head nib bolts [DIN]
DIN 607 - 1981 		Round head nib bolts
2 Round Head double nib bolts [ASME/ANSI]
ASME/ANSI B 18.5 - 2008 		Round Head double nib bolts
3 Round Head Fin Neck Bolts,(Inch Series) [Table 5] (A307, SAE J429, F468, F593) [ASME/ANSI]
ASME/ANSI B 18.5 - 2012 		Round Head Fin Neck Bolts,(Inch Series) [Table 5] (A307, SAE J429, F468, F593)
4 Round Head Fin Neck Bolts,(Inch Series) [Table 5] (A307, SAE J429, F468, F593) [ASME]
ASME B 18.5 - 2012 (2017) 		Round Head Fin Neck Bolts,(Inch Series) [Table 5] (A307, SAE J429, F468, F593)
5 Cup Head Nib Bolts [DIN]
DIN 607 - 2010 		Cup Head Nib Bolts
6 Cup head nib bolts with large head [GB]
GB /T 15 - 1988 		Cup head nib bolts with large head
7 Mushroom Head Nib Bolts [GB]
GB /T 15 - 2013 		Mushroom Head Nib Bolts
8 Cup head nib bolts [GB]
GB /T 13 - 1988 		Cup head nib bolts
9 Black Cup Nibbed Bolts For Iron And Steel Work [BS]
BS 325 - 1947 		Black Cup Nibbed Bolts For Iron And Steel Work
10 Cup head nib bolts with large head [GB]
GB 15 - 1976 		Cup head nib bolts with large head
11 Metric Cup Head Nibbed Bolts [BS]
BS 4933 - 1973 		Metric Cup Head Nibbed Bolts
12 Cup Head Nib Bolts [GB]
GB /T 13 - 2013 		Cup Head Nib Bolts
13 ISO Metric Cup Nibbed Head Bolts [AS]
AS /NZS 1390 - 1997 (R2016) 		ISO Metric Cup Nibbed Head Bolts
14 Round Head Nip Bolts [CNS]
CNS 4696 - 1983 		Round Head Nip Bolts