Click Specification

(Non-preferred) dimensions in parentheses.

Cup Square Neck Bolts with Short Neck - Product Grade C

GB 801 - 1988

Display drawing:

Download CAD Model^*

^*Models with different eras.

Nominal Length L Tips:seclect Nominal Length L and get Thread length.

Screw Thread
d

M10

M12

Length of Thread b

①,ds ≈ Pitch diameter OR ds = Major diameter
②,Try not to use the specifications in parentheses
③,When L-k1-2P ≤ b, make full thread

GB 801 - 1988 GB /T 801 - 1998 GB /T 801 - 2021

1	[ASME/ANSI] ASME/ANSI B 18.5.2.2M - 2005	Metric Round Head Square Neck Bolts
2	[ASME/ANSI] ASME/ANSI B 18.5 (T3) - 2012	Round Head Short Square Neck Bolts,(Inch Series) [Table3] (A307, SAE J429, F468, F593)
3	[ASME] ASME B 18.5 (T3) - 2012 (2017)	Round Head Short Square Neck Bolts,(Inch Series) [Table3] (A307, SAE J429, F468, F593)
4	[ASME/ANSI] ASME/ANSI B 18.5.2.1M - 2011	Metric Round Head Short Square Neck Bolts
5	[ASME/ANSI] ASME/ANSI B 18.5 - 2008	Round Head Short Square Neck Bolts
6	[ISO] ISO 8678 - 1988	Cup Head Square Neck Bolts with Small Head and Short Neck - Product Grade B
7	[JIS] JIS B 1171 (AT2) - 1996	Round Head Bolts with Short Square Neck [Table 2]
8	[GB] GB /T 801 - 2021	Cup Head Square Neck Bolts with Small Head and Short Neck - Product Grade B
9	[GB] GB /T 801 - 1998	Cup Head Square Neck Bolts with Small Head and Short Neck - Product Grade B
10	[JIS] JIS B 1171 - 2005	Cup Head Square Neck Bolt