BS Cycle Thread Gauges

BS Cycle Thread Gauges

BS Cycle threads are used for Spokes, Nipples, Bolts, Nuts in Bicycle Industry.

Specification:

Basic Dimensions: BS 811 : 1950 & Gauging Practice: BS 919 Part II : 2007.

Manufacturing Range :

Sizes covered are SWG series for spokes & Nipples - SWG 8,9,10 & 11, Diameter 1/8 to 31/32 with various TPI as specified in specification.

DIAMETER/ SIZE TPI Thread Plug Gauges Thread Ring Gauges Check Plug Gauges to check NEW Rings. Wear Check Plug Gauges to check/ calibrate used Rings.
For Spokes and Nipples        
SWG 11 44 Tolerance Class
Medium (M)
Tolerance Class
Medium (M)
Tolerance Class
Medium (M)
Tolerance Class
Medium (M)
SWG 10,SWG9 40
SWG 8 32
For Bolts and Nuts
1/8 40 Tolerance Class
Close (C)
Medium (M)
Free (F)
Tolerance Class
Close (C)
Medium (M)
Free (F)
Tolerance Class
Close(C)
Medium (M)
Free (F)
Tolerance Class
Close (C )
Medium (M)
Free (F)
5/32, 3/16 32
7/32 ,1/4, 9/32, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8,11/16, 3/4, 26
For Special Thread Applications        
       
7/8, 1, 1.290, 1.3701.9/16, 1.5/8 24 Tolerance Class
Medium (M)
Tolerance Class
Medium (M)
Tolerance Class
Medium (M)
Tolerance Class
Medium (M)
1.1/8, 1.45,17 / 64 26
31/32 30