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Large Flat Head Machine Screws by ZCM - Zhongchun Machinery
Two large flat head machine screws with Phillips cross recess by ZCM
Two large flat head machine screws crossed view by ZCM
Three large flat head machine screws in different sizes by ZCM

Screws

Large Flat Head Machine Screws

Oversized Truss Head / Phillips Cross Recess

Our large flat head machine screws feature an oversized truss-style head that provides a significantly wider bearing surface than standard pan head or round head screws. This design distributes clamping force over a larger area, making them ideal for fastening thin sheet materials, soft substrates, and applications where pull-through resistance is critical. Manufactured through precision cold heading with Phillips cross recess drive for reliable installation.

Key Features

Oversized flat head for maximum clamping surface
Phillips cross recess for easy power-driven installation
Precision cold-headed for consistent dimensions
Available in carbon steel and stainless steel
Multiple surface finishes: zinc, nickel, plain
Full thread for maximum grip length

Technical Specifications

Product NameLarge Flat Head Machine Screws
Chinese Name大扁头机螺丝
BrandZCM / Zhongchun
Grade4.8 / 8.8
MaterialCarbon Steel, Stainless Steel (304/316)
Size RangeM2 - M8
ThreadFull Thread
Head TypeLarge Flat Head (Oversized Truss Head)
Drive TypePhillips Cross Recess (H-type)
Surface TreatmentZinc Plated (White/Yellow/Blue), Nickel Plated, Plain
StandardsGB/T 5791, DIN 921, Custom
PackagingCarton + Pallet, or per customer request
MOQContact us for details
Lead Time15 days for standard orders

Applications

Large flat head machine screws are widely used wherever a broad clamping surface and flush-mount fastening is required.

Electronics enclosure and PCB assembly
Sheet metal panel fastening
Electrical equipment and switchgear
Appliance and white goods manufacturing
Automotive interior trim components
Furniture hardware and fittings
Precision instrument assembly
LED lighting fixture mounting

Interested in Large Flat Head Machine Screws?

Send us your specifications for a competitive quote. Standard orders delivered in 15 days.