Roofing screw / Landwide Screw is not only a screw factory but also a consultant, service provider assisting partners all over the world to find suitable solution in their fastener business for 29 years

FARMER SCREW - Roofing screw
  • FARMER SCREW - Roofing screw



Roofing Screw

Farmer screw can also be named Roofing screw. The different head colors perfectly fit the corrugated roofing sheets. EPDM bonded washer helps for a better waterproof. Steel washer or Aluminum washer are optional.

The coarse thread with reduced drilling point are applied light gauge metal with steel structures.

RAL colors powder painting are mostly chosen.

M4.8 X 20#12 MM (1+1)
M4.8 X 22#12 MM (1+1)
M4.8 X 28#12 MM (1+1)
M4.8 X 35#12 MM (1+1)
M4.8 X 40#12 MM (1+1)
M4.8 X 60#12 MM (1+1)
M4.8 X 70#12 MM (1+1)
M4.8 X 75#12 MM (1+1)

※ Upward sizes are most common size in market. For other size requirement, please directly contact Landwide via

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Frequently Asked Questions
What are your ranges of manufacture sizes of screws?

Dia: 3.0mm-16.0mm (Min.-Max.) Length:5.0mm-300.0mm (Min.-Max.)

FARMER SCREW | Landwide Screw - A professional screw factory provide standard screw, non-standard screw and also R&D service to world fastener business.

Located in Taiwan R.O.C. since 1992, Landwide Co., Ltd. is a FARMER SCREW | screw manufacturer that is specialized in providing screws with ISO manufacturing, great range of tek screws, materials & grades, high strength, custom design, special coating, packaging and value-added services.

Landwide screw with 29 years of screw manufacturing experience, specialized in all kinds of standard and non-standard screws. Especially, we are keeping the R&D effort for other special specification and custom made products which continuously help partners create unique market position in this competitive industry. In Landwide, customer is at the heart of our business model which includes outstanding quality, professional consultant, on time delivery and competitive price.

Landwide has been offering worldwide customers high-quality screws & bolts, both with advanced technology and 29 years of experience, Landwide ensures each customer's demands are met.