Butt Fastener

Butt Coupler(Connector Coupler)

Product Overview

The butt coupler is an indispensable connecting component in the construction industry,primarily used for assembling and securing steel tube scaffolding systems to ensure worksite safety and structural stability.

Installation Guidelines

1.Longitudinal Horizontal Member Connections

Preferred Method:Butt connection using couplers

Alternative Method:Lap joints(subject to compliance)

Butt Connection Requirements:

✓Staggered joint arrangement–adjacent longitudinal members must not connect at the same vertical/horizontal position

✓Minimum 500mm horizontal spacing between non-aligned joints

✓Maximum distance from joint center to nearest main node:≤1/3 of longitudinal span

Lap Joint Specifications:

✓Minimum 1m overlap length

✓Secured with 3 equally-spaced swivel couplers

✓End coupler edge to overlap termination:≥100mm

Technical Advantages

Feature Technical Superiority

Material Strength 5mm thickness(vs traditional 3.5mm)–43%greater deformation resistance

Anti-Slip Design Full-surface contact(vs cast iron point/line contact)–300%greater friction coefficient

Corrosion Resistance Special coating extends service life 2-3×conventional products

Maintenance Damage rate<0.5%–reduces repair costs by 60%compared to cast iron couplers

Performance Benefits

Structural Reliability

Eliminates (scaffold tube slippage)accidents through optimized clamping force

Maintains integrity under 1.5×design load(EN 74-1 certified)

Economic Efficiency

8-10 year service life enables 500+reuses

Rental ROI increases 35%versus inferior products

Operational Safety

90%non-brittle failure mode

Visual inspection indicators for wear monitoring

Industry Compliance

Meets:

•GB 24910-2020(China)

•EN 74:1988(EU)

•OSHA 1926.452(US)

Note:Custom galvanized/zinc-plated versions available for coastal/marine applications.

This engineered coupler solution represents the next evolution in scaffolding safety,combining military-grade materials science with practical construction ergonomics for modern worksite demands.