ThruLOK® comes in specific lengths that allow contractors to replace their 1/2" carriage and through-bolts in three primary deck applications:

OlyLog® is the first threaded log home fastener which requires no pre-drilling and is ACQ approved

1/16 x 12 High Speed Aircraft Bit Cobalt

5/8-18 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated

9/16-12 x 2 3/4 Socket Cap Screw Alloy

M30-3.50 x 400 Socket Cap Screw 12.9 Alloy Plain DIN 912 1 1/4-7 Socket Cap Screws Alloy ThruLOK® comes in specific lengthsM30 3. 50 x 400 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.