503 × 800
Source:https://cellarleather.com/shop/handmade-belts/unique-leather-belt-collection/pin-plaque-bison-leather-belt/
400 × 400
Source:https://www.ebay.com/itm/334810822193
1200 × 1200
Source:https://mossmotors.com/222-115-seat-belt-anchor-nut
768 × 896
Source:https://www.jpcycles.com/product/bdl-pulley-insert-and-nut-for-bdl-belt-drives
900 × 1200
Source:https://www.z1motorsports.com/fan-ac-and-power-steering-belt/nissan/oem-vq35de-belt-tensioner-pulley-nut-p-12451.html
640 × 640
Source:https://www.aliexpress.com/i/1005002967588348.html
353 × 618
Source:https://cablevey.com/what-are-the-different-types-of-nuts-conveyors/
541 × 800
Source:https://cellarleather.com/shop/handmade-belts/gun-carry-and-leather-work-belts/american-bison-wide-leather-belt/
500 × 500
Source:https://www.ebay.com/itm/334810822193
768 × 768
Source:https://www.walmart.com/ip/5-Sets-Binding-Screw-M6x25-Bolt-Cap-Nut-Countersunk-Belt-Barrel-Nut-Connector/2662832299