#1 square drive trim head

8 x 1 1/4 Simpson Pan-Head Marine Screw - Phillips Drive 316 SS - Box (100)

8 x 2 Simpson Flat-Head Deck-Drive™ DWP Wood Screws - 6-Lobe Drive 316 SS - Deck Pack (350)

#33 High Speed Aircraft Bit

8 x 1 1/2 Simpson Truss-Head Wood Screws - Square Drive 305 SS - Box (100)

M20-2.50 x 30 Hex Cap Screw DIN 933 A2 (18-8) Stainless Steel #10 6-Lobe Flat-Head Simpson Deck-Drive DWP Wood Screws 316 Stainless Steel #1 square drive trim headM20 2. 50 x 30 Hex Cap Screw DIN 933 A2 (18 8) Stainless Steel DIN 933 A2 Hex Cap Screws are manufactured from A2 70 stainless steel per ISO 3506 part 1. These are fully threaded hex cap screws (i. e. tap bolts) with all dimensions conforming to DIN 933. Designed for use in pre tapped holes and where corrossion is of concern.