Sub frame fastening screws
Improve efficiency and long-term hold with premium sub frame fasteners from SFS
Made from high-grade steel, our sub frame screws deliver accelerated implementation and lasting corrosion resistance.
Intertek Evaluation Report
1/4" diameter Bi-Met 300® products are listed on Intertek Evaluation Report CCRR-0387Bi-Met 300® brochure
10-16 SD2 Bi-Met 300®
For light and medium gauge metal connections, curtain wall and building envelope attachment or dissimilar metal connections- 304 stainless (bi-met) with carbon drill point
- Low hex washer head for ACM/MCM framing
- Drill capacity: 0.105" (2.7 mm) max
- Diameter: #10 with 16 threads per inch
- Head: 5/16" AF hex washer head
12-14 SD3 Bi-Met 300®
For light and medium gauge metal connections, curtain wall and building envelope attachment or dissimilar metal connections- 304 stainless (bi-met) with carbon drill point
- Drill capacity: 0.210" (5.3 mm) max
- Diameter: #12 with 14 threads per inch
- Head: 5/16" AF hex washer head
12-24 SD5 Bi-Met 300®
For heavy gauge metal connections, curtain wall and building envelope attachment or dissimilar metal connections- 304 stainless (bi-met) with carbon drill point
- Drill capacity: 0.500" (12.7 mm) max
- Diameter: #12 with 24 threads per inch
- Head: 5/16" AF hex washer head
12-14 SD3 Pancake Bi-Met 300®
For light and medium gauge metal connections, curtain wall and building envelope attachment, standing seam clip attachment or dissimilar metal connections- 304 stainless (bi-met) with carbon drill point
- Flat head for visible attachments
- Drill capacity: 0.210" (5.3 mm) max steel
- Diameter: #12 with 14 threads per inch
- Head: Pancake #2 square
1/4-14 SD2 Bi-Met 300®
For light and medium gauge metal connections, curtain wall and building envelope attachment or dissimilar metal connectionsListed on Intertek Evaluation Report CCRR-0387
- 304 stainless (bi-met) with carbon drill point
- Drill capacity: 0.105" (2.7 mm) max
- Diameter: 1/4" with 14 threads per inch
- Head: 3/8" AF hex washer head
Intertek CCRR-0387 Report | PDF
1/4-20 SD4 Bi-Met 300®
For heavy gauge metal connections, curtain wall and building envelope attachment or dissimilar metal connectionsListed on Intertek Evaluation Report CCRR-0387
- 304 stainless (bi-met) with carbon drill point
- Drill capacity: 0.312" (7.9 mm) max
- Diameter: 1/4" with 20 threads per inch
- Head: 3/8" AF hex washer head
Intertek CCRR-0387 Report | PDF
1/4-20 SD5 Bi-Met 300®
For heavy gauge metal connections, curtain wall and building envelope attachment or dissimilar metal connectionsListed on Intertek Evaluation Report CCRR-0387
- 304 stainless (bi-met) with carbon drill point
- Drill capacity: 0.500" (12.7 mm) max
- Diameter: 1/4" with 20 threads per inch
- Head: 3/8" AF hex washer head
Intertek CCRR-0387 Report | PDF
SDA5 Full 316 SS Self-Driller Sub-Construction Fastener
For NVELOPE bracket to aluminum- Available in 316 stainless steel for increased lifetime with no fastener inspection
- Drill capacity: 0.197" (5 mm) max
- Diameter: #12 (5.5 mm) with 14 threads per inch
- Head: HWH 5/16" (7.8 mm) AF with SR2 Internal Drive
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SX3 Stainless Self-drill
- 304 stainless (bi-met) with carbon drill point
- Drill capacity: .035"–.098" (.88–2.5 mm)
- For max build up to .787" (20 mm)
- Diameter: #14 with 11 threads per inch
- Head: 5/16" AF hex washer head
- Available with 5/8" stainless bond seal washer
SX5 Stainless Self-Drill
Ideal for medium thickness metal to metal- 304 stainless (bi-met ) with carbon drill point
- Drill capacity: .060"–.157" (1.5–4 mm)
- Diameter: #12 with 11 threads per inch
- Head: 5/16" AF hex washer head
- Available with 5/8" stainless bond seal washer
SX14 Stainless Self-Drill
Ideal for heavy-duty metal to metal- 304 stainless (bi-met) with carbon drill point
- Drill capacity: .157"–.550" (4–14 mm)
- For max build up to 2.283" (58 mm)
- Diameter: #12 with 14 threads per inch
- Head: 5/16" AF hex washer head
- Available with 5/8" stainless bond seal washer
Maximize your sub frame installation results with superior fasteners. Call us at 1-866-847-5400 to place your order.