Collection
Fastener assortment kits, screws, bolts, nuts and washers — standard ranges plus custom CNC machined parts made to your drawings. Small MOQ — orders start from 1 piece.
Cotter pin assortment in a compartment storage box, 100 pieces in 5 sizes: 2×20 (70 pieces), 3×30 (10), 4×30 (10), 5×40 (5) and 6×40 (5). For mechanical fastening, home repair and agricultural implements / tractors. Small MOQ — orders start from just 1 piece. To request a quote, send us the kit reference or a product photo, the quantity you need, and your delivery country.
Recommended articles
Buying guides, material notes, and stories for choosing with more confidence.
M6 × 1.0 × 20 — what do the numbers mean? How to measure screw diameter, length and thread pitch with calipers or a ruler, with a metric pitch chart.
Buying screw assortment kits for resale or workshop use? Check size coverage, contents, materials, the case and restocking before you order — a practical guide from Boltriver.
Request a custom screw quote with a simple checklist covering drawings, dimensions, material, finish, quantity, and delivery.
