Fastener Grade (US) or Class (metric) refers to the mechanical proper- ties of the fastener For a chart of fastener grades, head markings and mechanical properties, see. Bolt Depot's . Nut and washer sizes indicate the screw or bolt they fit. Section G. Metric & US Fastener Thread Pitch Chart. Section H Metric Hex Head Screw Full Thread- & S.S. A2 - Din /ISO Article # = Black / # = Zinc / # = S.S. A2. Size: Size: Size: Size: Size. Ref: DIN - This standard contains specifications for fully threaded hexagon head screws with coarse metric thread for diameters M to M

FAX () Tool Size Chart. Inch Fasteners. Metric Fasteners. Wrench Sizes (in.) Hex Key Sizes (in.) Wrench & Hex Key Sizes (mm). Diameter. Hex. **DIN spec for maximum width across flats on these three diameters are 17, 19 & 22 mm, respectively. METRIC - HEX HEAD BOLTS, PRODUCT GRADE B. Ref: DIN - This standard contains specifications for fully threaded hexagon head screws with coarse metric thread for diameters M to M Fastener Grade (US) or Class (metric) refers to the mechanical proper- ties of the fastener For a chart of fastener grades, head markings and mechanical properties, see. Bolt Depot's . Nut and washer sizes indicate the screw or bolt they fit. Section G. Metric & US Fastener Thread Pitch Chart. Section H Metric Hex Head Screw Full Thread- & S.S. A2 - Din /ISO Article # = Black / # = Zinc / # = S.S. A2. Size: Size: Size: Size: Size. Spanner Sizes Versus Bolt / Nut thread size bolts which hold it all together and, at first sight, it seems that all metric bolts The bolt head should also have a. corners e. Thickness of head k. Radius under head r. Width across flats s. EN ISO (DIN) Dimensions of bolts. Dinstock Ltd, Unit C1 Hortonwood (Note: Head sizes may differ from what is shows due to differences between metric standards) Standard Metric Machine Screw Sizes Fastener Type Chart. FASTENER SIZE CHART Class INCH/METRIC CONVERSION. INCH. SIZE. COARSE. THREAD. FINE HEAD MARKINGS - METRIC CAP SCREW.