1.k Norton Engine Bolts, Screws, Nuts, Special Washers - SOHC (and Other Single Cylinder Models)

Complete cheesehead screw set for SOHC engine, in stainless steel with red fibre washers - comprising : 18 screws in total - 4 cambox front bevel screws, 6 rear cambox screws, 7 timing case screws, 1 crankcase screw and high quality fibre washer set. Original Norton head pattern - see listing for details

This is the 13289(Norton part number) 1/2" x 20 Engine Bolt set - but as fitted to SOHC Norton International Model 30 and Model 40 models, with the rounded head profile as would be expected on roadgoing International models.  It should be noted that Norton themselves actually used a 0.5" Stud with nuts both ends for this bolt on roadgoing models - but that was probably for convenience, so this bolt is manufactuered as a Hex head bolt, with a nut on just one end (as per the Manx equivelant, but with rounded head). The set is CNC machined from stainless steel with the correct 'reduced Hex' head and profile, 2 stainless washers and reduced Hex wider nut

This is the E4256 7/16" x 20 front engine bolt set as fitted to Norton International Model 30/40 (pre-Featherbed models), with the correct distinctive 'Norton type' reduced hex and curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger framed SOHC models from 1930's/50's

This is the E4251(Norton part number) 3/8" x 26 Engine Bolt set - front lower crankcase - approx 4pm position as fitted to SOHC Norton International Model 30 and Model 40 models. This has the rounded head profile as would be expected on roadgoing International models.  The set is CNC machined from stainless steel with the correct 'reduced Hex' head and profile, 2 stainless washers and reduced Hex wider nut

This is the E4262 5/16" x 26 engine cradle bolt set as fitted to Norton International Model 30/40 and all other Norton models if fitted into a 'Cradle' type frame. This bolt has the normal Norton curved head shape and deeper hex than commercial 5/16" bolts.  Two of these bolts are fitted and feed through the bottom frame cradle and engine.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger cradle framed SOHC models from 1930's/50's 

This is the E4256 7/16" x 20 top/rear engine bolt set as fitted to Norton International Model 30/40 (pre-Featherbed models) - above the magneto, with the correct distinctive 'Norton type' reduced hex and curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger framed SOHC models from 1930's/50's

This is the E4256 7/16" x 20 under magneto/rear engine bolt set as fitted to Norton International Model 30/40 (pre-Featherbed models) - above the magneto, with the correct distinctive 'Norton type' reduced hex and curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger framed SOHC models from 1930's/50's

This is the E4251 3/8" x 26tpi below magneto/rear engine bolt set as fitted to early Norton International Model 40/Pre 48 Manx Model 40M (pre-Featherbed models) - as fitted below the magneto, with the roadgoing type distinctive 'Norton type' rounded head/reduced hex curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel

This is the E4251 3/8" x 26tpi above magneto/rear engine bolt set as fitted to early Norton International Model 40/Pre 48 Manx Model 40M (pre-Featherbed models) - as fitted above the magneto, with the roadgoing type distinctive 'Norton type' rounded head/reduced hex curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. 

This is the distinctive E4268 7/16" x 20 tpi BSC short engine bolt that was used to bolt the rear engine plates to the upright frame tube on most 1930s - 1950s Norton frames.  These are CNC machined by us in stainless steel (with linished flats).