# ScaffoldCoupler.com > Independent technical reference for scaffold couplers and clamps: coupler types, BS 1139 / EN 74 standards, load ratings, weights, pressed vs drop-forged, and how to source from a manufacturer. ## Editorial standards - Load values are quoted from BS 1139 / EN 74 or named manufacturer test reports, with sources listed on each guide - Independent: no manufacturer pays for placement; the site earns a referral fee from factories on orders introduced via /request-quote - UK (tube and fitting) and US (tube and clamp) terminology are both given - Last updated: 2026-09-15 ## Topics ### Coupler Types - /topics/types — Swivel, double / right-angle, sleeve, putlog, beam clamps and accessory couplers — what each does and where it is used. ### Standards & Load Ratings - /topics/standards — BS 1139, EN 74 classes A/B, slip and failure loads, weights and dimensions, pressed vs drop-forged. ### Tube & Fitting Systems - /topics/systems — How tube-and-clamp (US) / tube-and-fitting (UK) scaffolding goes together, and the names buyers use in each market. ### Sourcing & Pricing - /topics/sourcing — Price ranges per piece and per tonne, certification checklists, galvanising options, MOQ and packing. ## Buyers - /request-quote — quote form (type, standard, finish, quantity) - /about — how the sourcing desk and referral fee work - /contact - /privacy ## Full text - /llms-full.txt