1/2 x 12 High Speed Aircraft Bit

Designed for use in pre-tapped holes and where corrossion is of concern

7 x 2 1/4 Simpson Trim-Head Self-Drilling Siding Screw - Square Drive 410 SS - Box (100)

non-corrosive environments or temporary outdoor applications

The 3 1/4 -8 A194 2H Plain Heavy Hex Nut is a dependable fastener for holding structures together

M16-2.0 x 130 Hex Cap Screw 8.8 DIN 931 Zinc Plated Square Flat-Head Self Drilling Screws with Wings 410 Stainless Steel 1/2 x 12 High SpeedM16 2. 0 x 130 Hex Cap Screw 8. 8 DIN 931 Zinc Plated Class 8. 8 Hex Cap Screws are manufactured from medium carbon steel, quenched and tempered. These are premium quality, medium strength fasteners with partially threaded shanks conforming to DIN 931.