Wood Screw Heads - Flat vs Oval vs Round – Fair Wind Fasteners

Screw Heads - Different Types

Stainless Steel Machine Screws

A guide to wood screw sizes - Screw size chart

1/4-20 Phillips Oval Head Machine Screws Stainless Steel

Screw Fundamentals

Hillman Metric Pan Head Phillips Machine Screws, Assorted Sizes

Kinetic Sand. Tray Image & Photo (Free Trial), Kinetic Sand Tray

Flat Head Silicon Bronze Machine Screws / Bolts

Solid 651 Silicon Bronze Round Head Machine Screws with a Slotted Drive These machine bolts have a round head. You can also find bronze flat head

Round Head Silicon Bronze Machine Screws / Bolts