each prong of the cotter pin will be capable of withstanding being bent back upon itself once with no visible indication of fracture occurring at the point of the bend

Yellow zinc plated bolting will meet or exceed ASTM F1941

#3 drill point

Drive Sizes: #8 - T20 #10 - T25

1 1/8-7 x 11 Socket Cap Screw Alloy

M42-4.50 x 320 Socket Cap Screw 12.9 Alloy Plain DIN 912 Simpson Zinc Nailon™ Pin Drive Anchor Carbon Steel Pin each prong of the cotterM42 4. 50 x 320 Socket Cap Screw 12. 9 Alloy Plain DIN 912 . Alloy Socket Head Cap Screws from Brighton Best. Hardness of RC 38 43, meets or exceeds DIN 912. Manufactured from heat treated alloy steel, 1960 series.