#15 x 6 High Speed Aircraft Bit Cobalt

your screws require a stronger hold to resist gradual loosening and sudden breakage due to the excessive weight of the items they’re helping to support

8 x 1 5/8 Simpson Flat-Head Deck-Drive™ DWP Wood Screws - 6-Lobe Drive 316 SS - Bulk Carton (4000)

6 x 1 1/4 Simpson Bugle-Head Wood Decking Screws - 6-Lobe Drive 305 SS - Bulk Pail (5000)

1-8 x 3 1/4 Hex Cap Screw SS 18-8 (A2)

M10-1.50 x 220 Socket Cap Screw 12.9 Alloy Plain DIN 912 7/16-14 Socket Cap Screws Alloy #15 x 6 High SpeedM10 1. 50 x 220 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.