BS 4395-1(1969) : 1969被替代
SPECIFICATION FOR HIGH STRENGTH FRICTION GRIP BOLTS AND ASSOCIATED NUTS AND WASHERS FOR STRUCTURAL ENGINEERING - GENERAL GRADE
出版：British Standards Institution
專家解讀視頻
Gives requirements for one grade of quenched and tempered high strength friction grip hexagon head bolts and their associated nuts and washers used in structural engineering. Gives mechanical properties and dimensions for a range of nominal sizes from 12 mm (M 12) to 36 mm (M 36) inclusive. Details tests, inspection procedure and provisions for marking. Includes BSI policy statement on screw threads and the metric system, testing of mechanical properties of steel bolts and nuts, test programme, recommended gauge for checking squareness of thread to face of nut and standard nominal lengths and preferred sizes of ISO metric high strength friction grip bolts (general grade).
