Kurt J. Lesker Company | Vented Stainless Steel Hex Head Bolts (SI) | Enabling Technology for a Better World
25pcs) DIN 6912 M20X130 Socket Head Cap Screws with Center Hole, Low Head A4 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP6912420-130: Amazon.com: Industrial & Scientific
Types of Bolts: Types, Components, and Fastener Terms
DEWHEL Top Dead Center Locater Screws into 14mm Spark Plug Hole : Amazon.co.uk: DIY & Tools
Hex Socket Head Cap Screws with thru Hole Partial Thread Screw | Sunco | MISUMI
M8/M10 Socket Concrete Screw Bolt (6mm Hole) (Sold Individually) | Concrete Screws & Bolts | Fixings and Powertool Center
304 Stainless Steel Square Washer with Screw Hole in Center - China Bolt, Washer | Made-in-China.com