Custom Fasteners Ltd.

Bolts

Metric, Metric Fine, UNF, UNC, Cycle, BSF, 2BA and Whitworth threads available in chrome and stainless steel. All individual bolts feature polished heads.

BA Bolts

BA BoltsMost sizes available in chrome and stainless steel with the top face mirror polished to remove marks and lettering. All of our BA bolts are threaded to the head (correctly known as hexagon set screws). All bolts are measured from under the head.

BSCY (CEI, Cycle 26 TPI) Bolts

BSCY (CEI, Cycle 26 TPI) BoltsMost sizes available in chrome, satin chrome and stainless steel with the top face mirror polished to remove marks and lettering. Normally bolts up to 2" long are threaded to the head (correctly known as hexagon sets or set screws), 2" and above are usually part threaded with a plain shank. All bolts are measured from under the head. Cycle thread was used extensively on British motorcycles in the 1940's, 50's and early 60's. Satin chrome is very similar in looks to cadmium plating which is no longer permitted.

BSF Bolts

BSF BoltsMost sizes available in chrome and stainless steel with the top face mirror polished to remove marks and lettering, (1/4"BSF also available in satin chrome). Normally bolts up to 2" are threaded to the head (correctly known as hexagon sets or set screws), 2" and above are usually part threaded with a plain shank. All bolts are measured from under the head.

Metric Bolts

Metric  BoltsMost sizes available in chrome and stainless steel with the top face mirror polished to remove marks and lettering. Normally bolts up to 50mm are fully threaded to the head (correctly known as hexagon sets or set screws), longer than 50mm are usually part threaded with a plain shank. All bolts are measured from under the head. Metric bolts in M4, M5, M6, M7 and M8 diameters are suitable for both European and Japanese motorcycles and cars. However, M10 in the standard 1.50 pitch are only suitable as replacements on European machines. They will not fit Japanese vehicles which use their own specialised fine thread.

Metric Bolt Covers

Metric Bolt CoversChrome plastic covers for metric hexagon head bolts that simply push on. Please note that these covers will only fit the head sizes as listed.

Metric Domed Head Flange Bolts

Metric Domed Head Flange BoltsOriginal Japanese style domed head flange bolts with reduced size hexagon. Available in authentic original chrome finish only. Ideal for restorers of Japanese bikes.