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SOPREMA BSF Base Sheet Fasteners, Galvanized Steel Legs with Galvalume Disk, 2.7 in. Cap
Regular price $262.51Orders start at $399 — combine any items to reach the minimum. Learn more
SOPREMA BSF Base Sheet Fasteners, Galvanized Steel Legs with Galvalume Disk, 2.7 in. Cap
SOPREMA BSF base sheet fasteners secure base sheets and membranes in low-slope roofing. Each fastener has rectangular dual-gripping legs in 1.2 in. or 1.7 in. lengths of corrosion-resistant G-90 galvanized steel with an elastomeric polymer coating, topped by a 2.7 in. rib-reinforced Galvalume (AZ-55) disk. Boxes of 500 or 1,000 fasteners are available.
Key Features:
- Corrosion resistant: G-90 galvanized steel legs with a special elastomeric polymer coating on exposed surfaces resist corrosion.
- Galvalume disk: The 2.7 in. disk is corrosion-resistant Galvalume (AZ-55) steel.
- Rib-reinforced cap: A rib-reinforced 2.7 in. diameter cap provides holding power over the sheet.
- Dual gripping legs: Rectangular dual-gripping legs in 1.2 in. and 1.7 in. lengths grip the deck.
- Bulk boxes: Available in boxes of 500 or 1,000 fasteners for full-roof fastening jobs.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Soprema |
| Sell unit | 1 box (500 or 1,000 fasteners depending on variant) |
| Product line | BSF (Base Sheet Fasteners) |
| Material | Galvanized (G-90) steel legs; Galvalume (AZ-55) steel disk |
| Finish / texture | Elastomeric polymer coating on exposed surfaces |
| Dimensions | 1.2 in. or 1.7 in. legs; 2.7 in. diameter disk |
| Available sizes | ['1.7 in. legs, box of 1,000', '1.7 in. legs, box of 500'] |
| Available colors | ['Metallic (coated steel)'] |
| Pack quantity | 500 or 1,000 per box depending on variant |
| Intended use | Membrane and base sheet fastening in commercial low-slope roofing |
Coverage & How Much You Need:
Fastener spacing depends on the membrane system's wind-uplift design; size the job by counting fasteners per insulation board or base sheet row per the SOPREMA system specification. One box of 1,000 fasteners covers proportionally more area than the 500-count box at the same spacing.
Fit and Compatibility:
Designed for use with SOPREMA base sheet and membrane roof systems; choose leg length to suit the substrate depth being penetrated. Use with the matching SOPREMA plates and system components where the specification calls for them.
Frequently Asked Questions (FAQ):
Q: What sizes and quantities are available?
A: Two variants are listed: 1.7 in. fasteners in boxes of 1,000 and boxes of 500.
Q: What are the fasteners made of?
A: Legs are G-90 galvanized steel with an elastomeric polymer coating; the disk is Galvalume (AZ-55) steel.
Q: How big is the cap?
A: The rib-reinforced disk measures 2.7 in. in diameter.
Q: Will they rust?
A: They are corrosion-resistant galvanized steel, with exposed surfaces further protected by an elastomeric polymer coating and a Galvalume disk.
Q: Which leg length should I choose?
A: Leg lengths of 1.2 in. and 1.7 in. are referenced; select the length that properly penetrates the deck per your system specification.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Match the fastener leg length to the total insulation and base sheet thickness so the legs engage the deck properly without bottoming out. The wide 2.7 in. ribbed disk spreads load over the base sheet, which helps at high fastener densities in wind-uplift zones. Follow the membrane manufacturer's fastener pattern exactly, since spacing drives both uplift resistance and warranty compliance.
Fasteners have sharp points and edges; wear gloves and eye protection when driving them with a fastening tool.
Stock up on SOPREMA BSF base sheet fasteners for corrosion-resistant membrane attachment.
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