M6x20 SEMS style bolt with washer

M6x20 SEMS bolts combine both the bolt and the washer making them pre-assembled with a free-spinning washer that does not come off.

M6 x 20mm Hex Bolt/Nut & Washer Set (BZP) (Box of 100 each)

Wanyifa M5 Titanium Bolt Bicycle Brake C Clamp Bolts Ti Alloy Screws For Bicycle – Moda pé no chão

Blue Zinc Galvanized Bolt M6x20 c/w 2 Flat Washers 1 Spring Washer 1 Nut Grade 8.8 100pcs/pkt - Eezee

M6 Hex Flange Bolts/Washers Small Service Assortment & Refills – Bolt Motorcycle Hardware

Clipsandfasteners Inc Hex Head SEMS Body Bolt Zinc M6-1.0 X 22.5mm : Industrial & Scientific

M4 Double Washer Sems Screws ,304 Stainless Steel Fasteners ,A021 - AliExpress

M6-1.0 x 20MM Phillips Pan Head Machine Screws Bolts Combine with Spring Washer and Plain Washers, 18-8 Stainless Steel(304), Quantity 20 : Industrial & Scientific

Cap Screws with Captive Washer Pre-set Hex Socket Stainless Steel 304 - WKOOA

M6 Hex Flange Bolts/Washers Small Service Assortment & Refills – Bolt Motorcycle Hardware

50 PK M6.3-1.81 X 20 mm Phillips Hex Head Sems Screws 20 mm Washer - Shark Industries

Torx SEMS Screws Spring and Flat Washer Preset Stainless Steel 304 - WKOOA

M6 Hex Flange Bolts/Washers Small Service Assortment & Refills – Bolt Motorcycle Hardware