WebMar 13, 2012 · The British Association thread played a role similar to that of the ASME series in the United States, that is, it filled in sizes below a quarter-inch. The sizes most used were the even-numbered ones between 0 and 10, inclusive. The very small sizes, from 17 up, were rarely used. WebBSF: BSF bolts, setscrews, screws, nuts, locknuts, with head types including hex, cheese head, countersunk, roundhead, mushroom head, with slotted, Phillips and Allen drives, in …
Metric, Metric Fine, BSW, BSF, UNC, UNF and BA Thread Dimensions
WebEarly Whitworth nuts and bolts were larger than British Standard nuts [ BSF-BSCY] for example, a 5/16 Whitworth nut was the same size as a 3/8 British Standard nut. ... Whitworth was changed to B.S.W. [British Standard Whitworth] and the nut size was the same as BSF for the same diameter bolt. and the spanner carried one marking either … Web33 rows · 4.0900. 3.9300. 0.1601. 3.9352. British Standard Fine thread … cover headphones embroidery floss
BA size chart - Macc Models
WebIn fact, each spanner was marked with both Whitworth and BSF sizes, which are directly related but not the same. For any given imperial size, up to 7/8 inch BSF, the Whitworth equivalent is always 1/16th of an inch smaller than the equivalent BSF. e.g. a 1/2 inch BSF screw has the same across flats size as a 7/16inch Whitworth screw (or nut). Websku: B001 0BA x 1" C/SK BRASS - NICKEL PLATED $1.65 Add to Cart Compare sku: 2985 0BA x 1" C/SUNK SCREW $0.50 Out of stock Compare sku: 3195 0BA x 1" CHEESEHEAD SCREW $0.50 Add to Cart Compare sku: 2620 0BA x 1" HEX SCREW $0.50 Out of stock Compare sku: 2798A 0BA x 1" ROUND SLOTTED SCREW $0.50 Add to Cart Compare … WebU.N.C [national coarse] roughly derived from the British Whitworth having the same pitches except 1/2 in dia where Whitworth is 12tpi and U.N.C is 13 tpi. Both these threads are 60 degree angle. Early Harley and Indian motorcycles used 24tpi threads on most diameters 5/16 and 3/8 UNF are both 24tpi. 7/32 x 24 UNC is an obsolete thread coverhead farm leyburn