Product Type: Ultra Low Profile Screw Size: #10-9 Point Type: Gimlet Point Head Style: Ultra Low Pancake Head with Taper Drive System: #2 Square Recess Head Thickness: 0.040 inch Major Diameter: 0.195 inch Minor Diameter: 0.125 inch Stress Area: 0.01267 in² Materials: C1022 Carbon Steel, 410 Stainless Steel Heat Treatment: Case Hardened Carbon Steel Finish: Long-Life Ruspert Coating Carbon Steel Salt Spray Rating: 1,000 hours Stainless Steel Finish: Passivated Stainless Steel Salt Spray Rating: 48 hours Available Lengths: Up to 2-1/8 inches Roofing Compatibility: Copper Roofing Compatible
Ultra Low Profile Screws (ULP Screws) are designed for attaching standing seam roof clips to wood and fastening clip-less nail hem metal roof panels. Featuring an ultra-low pancake head with a tapered design, coarse threads, and a sharp gimlet point, these screws provide secure fastening for roofing applications.
Available in carbon steel and 410 stainless steel, ULP screws are designed for easy installation and reliable fastening performance.
Ultra-Low Pancake Head : 50% thinner than a standard pancake head to help prevent panel dimpling.
Tapered Head Design : Special taper increases head strength and allows the head to countersink into wood.
Coarse Thread Design : Helps pull the fastener tightly into the wood.
Sharp Gimlet Point : Designed for fast penetration into steel clips up to 24 gauge thick.
Minimum 1-Inch Thread Length : Provides full thread engagement for increased pullout resistance.
Corrosion-Resistant Coatings : Carbon steel versions feature a long-life Ruspert coating rated for 1,000 hours of salt spray testing.
Multiple Material Options : Available in C1022 carbon steel and 410 stainless steel.
Ultra Low Profile Screws are suitable for:
- Attaching standing seam roof clips to wood.
- Fastening clip-less nail hem metal roof panels.
- Attaching a variety of materials to steel up to 1/4 inch thick.
- Applications involving treated and fire-treated lumber.
| Product Type | Ultra Low Profile Screw |
| Size | #10-9 |
| Point Type | Gimlet Point |
| Head Style | Ultra Low Pancake Head with Taper |
| Drive System | #2 Square Recess |
| Head Thickness | 0.040 inch |
| Major Diameter | 0.195 inch |
| Minor Diameter | 0.125 inch |
| Stress Area | 0.01267 in² |
| Materials | C1022 Carbon Steel, 410 Stainless Steel |
| Heat Treatment | Case Hardened |
| Carbon Steel Finish | Long-Life Ruspert Coating |
| Carbon Steel Salt Spray Rating | 1,000 hours |
| Stainless Steel Finish | Passivated |
| Stainless Steel Salt Spray Rating | 48 hours |
| Available Lengths | Up to 2-1/8 inches |
| Roofing Compatibility | Copper Roofing Compatible |
The following figures represent average ultimate pullout values in pounds, as specified in the product documentation.
| Wood Type | Thickness | Pullout Value (lbs) |
| Plywood | 1/2 inch | 383 |
| Plywood | 5/8 inch | 395 |
| Plywood | 3/4 inch | 574 |
| OSB | 7/16 inch | 136 |
| OSB | 19/32 inch | 356 |
| OSB | 23/32 inch | 514 |
| SYP (2 × 4) | 2 × 4 lumber | 813 |
*Pullout values are the average ultimate values stated in the supplied product documentation. Actual performance may vary depending on installation conditions and materials.*
Why Choose Ultra Low Profile Screws?
Ultra Low Profile Screws combine a low-profile head, coarse threads, and a sharp gimlet point for roofing and metal fastening applications. Their design helps reduce panel dimpling while providing secure attachment to wood and steel components.
With carbon steel and stainless steel options, ULP screws offer material and finish choices for different project requirements.
Packaging Information
| Screw Size | Box Quantity | Weight per Box |
| #10-9 × 1-1/8 inch ULP | 5,000 pcs | 31.0 lbs |
| #10-9 × 1-5/8 inch ULP | 3,000 pcs | 34.0 lbs |
| #10-9 × 2-1/8 inch ULP | 1,000 pcs | 17.0 lbs |
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