HB 1-157-2002
120°raised countersunk head bolts with cross recess,short thread (English Version)

Standard No.

HB 1-157-2002

Language

Chinese, Available in English version

Release Date

2003

Published By

Professional Standard - Aviation

Latest

HB 1-157-2002

Replace

HB 1-157-1995

Scope

This standard specifies the construction and dimensions of short-thread cross-die 120" semi-dull rainbow bolts. This standard applies to mechanical connections.

HB 1-157-2002 history

• 2003 HB 1-157-2002 120°raised countersunk head bolts with cross recess,short thread
• 1995 HB 1-157-1995 Short thread cross recessed 120° countersunk head bolts
• 1970 HB 1-157-1983 Short thread cross recessed 120° countersunk head bolts
• 1970 HB 1-157-1977 Cross recessed 120° countersunk head bolts