Hardness of RC 38-43

1 1/8 x 8 Ship Auger Wood Bit

2 3/4-8 A194 2H Heavy Hex Nut Plain

23/64 Heavy Duty Drill Bit - Stubby Length

1 1/4-7 x 3 1/2 Socket Cap Screw Alloy

7/8-9 x 7 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) M6-1.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 Hardness of RC 38-437 8 9 x 7 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) . L9 High Tensile Strength Hex Cap Screws are designed for use in high stress, severe service environments. The highest mechanical strength off the shelf fastening system available, its special features control torque tension characteristics to develop high clamp loads when using properly controlled tightening methods. Brighton Best manufactures L9 bolting from AISI alloy steels. L9