Downloads

Product catalogue

General Data

BSCY thread data

Across the flats dimensions of hex headed bolts

Torque wrench settings for British Standard bolts

Schrader tyre valve data

Calculate tapping drill size

Wire and Letter drill conversions

JIS Information

Pre 1967 JIS Pan Head Standard

1967 Japan alters JIS standards - Honda Service Bulletin 27 - Change of Threaded Parts 6/8/67

1996 JIS B1111 for Cross Recess Screws

Circa 2020 JIS Pan Head Standard

Thread Identification

How to identify threads

tpi / pitch conversion

Wood & Self Tapping Screws

Pilot hole sizes for wood and self tapping screws

Screw gauge to mm/inches

Policy Documents