K plate bolt and nuts

Shaanxi Flourish Industrial Co., Ltd.'s K Plate Bolt and Nuts, engineered with 15 years of formwork fastening expertise, redefine reliability and efficiency for concrete formwork projects-from high-rises and bridges to tunnels. Unlike generic bolts (4.8-grade, ≤40kN load) and unstable wood fasteners, our 8.8/10.9-grade specialized solution integrates 80kN+ load-bearing capacity, 20% faster installation, and 5000+ reuse cycles.

1. High-Strength Load-Bearing System

Engineered for concrete pouring pressure (up to 40kN/m² lateral force):

Premium Material: Q355B carbon steel (8.8-grade) or 304 stainless steel (10.9-grade) with  heat treatment-tensile strength ≥800MPa (8.8-grade) and ≥1000MPa (10.9-grade) .

Structural Design: Serrated integrated washers (30° tooth angle) create 2.5x higher friction than flat washers, preventing loosening under pouring vibration (10-50Hz frequency) .

Load Capacity: M16 size bears ≥80kN, M20 ≥120kN, M24 ≥160kN-surpassing generic bolts by 100% .

2. Rapid Installation & Disassembly

Solving the inefficiency of traditional fasteners:

Tool-Compatible Design: Fits standard torque wrenches (150-300N·m) and socket sets-installation time per set <30 seconds (20% faster than generic bolts) .

Anti-Stick Coating: Zinc-plated/galvanized surface with PTFE film prevents concrete adhesion, cutting disassembly time by 40% post-pouring .

Universal Compatibility: M16-M24 sizes fit 6-20mm formwork thickness, compatible with steel, aluminum, and composite formwork systems .

3. Superior Durability & Reusability

 Outperforming disposable fasteners:

Dual Anti-Corrosion Treatment: 80μm hot-dip galvanizing (for Q355B) or passivation (for 304 stainless steel) -resists concrete alkalinity and construction site moisture (5000h salt-spray resistance) .

High Reusability: 5000+ reuse cycles (equivalent to 10+ project turnovers) with minimal maintenance-amortized cost <$0.5 per use .

Wear-Resistant Threads: 6H-class precision threads with surface hardening (HV ≥350) withstand repeated tightening/loosening .

1. K Plate Bolt (Structural Core)

Spec: M16-M24, length 50-200mm, shank diameter tolerance H11 .

Material: Q355B (8.8-grade: yield strength ≥640MPa) / 304 stainless steel (10.9-grade: yield strength ≥900MPa) .

Feature: Serrated integrated washer (thickness 3mm, 30° tooth angle), 6H-class thread .

Surface Treatment: 80μm hot-dip galvanizing (Q355B) / passivation (304) .

2. Lock Nut (Fastening Core)

Spec: M16-M24, hexagon type (width across flats 24-36mm) .

Design: Nylon insert + serrated base (double anti-loosening) .

Material: Matching Q355B/304 stainless steel .

Load Capacity: Equal to bolt (120kN for M20) .

3. Accessories

Flat Washers: 304 stainless steel (thickness 2mm, outer diameter 40mm) -enhances load distribution .

Locking Pins: Carbon steel with zinc plating-prevents nut loosening in high-vibration areas .

Storage Case: Waterproof plastic case (holds 50 sets) -facilitates on-site management .

1. How is it different from generic high-strength bolts?

Generic bolts lack formwork-specific design: their flat washers loosen under vibration, and low corrosion resistance limits reuse (≤500 cycles). Our K Plate solution has serrated washers (anti-vibration) and 5000h corrosion resistance, plus 10x more reuses-ideal for long-term formwork projects .

2. Can it fit both steel and aluminum formwork?

Yes-M16-M24 sizes fit 6-20mm thickness for all common formwork types. The serrated washers adjust to different surface textures (steel: smooth; aluminum: brushed) without damaging materials .

3. What's the maximum applicable concrete pressure?

It handles up to 40kN/m² (equivalent to 4m-deep concrete pouring). For ultra-high pressure (>40kN/m²), we recommend our 12.9-grade upgrade (tensile strength ≥1200MPa) .

Choose Shaanxi Flourish's K Plate Bolt and Nuts-strong, fast, and built for formwork challenges-turn every concrete project into a safe, efficient success!