Simpson Anchors
Simpson Strong-Tie S08150TSBC (#8 1-1/2") #2 Square Drive Truss-Head Screw - Type 305 (2000 Pack)
$330.04Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie S08C125TSC (#8 x 1-1/4" #2) Square Drive) Truss-Head Screw, Type 305 (100 Pack)
$24.81Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie S08C100TSC (#8 x 1" #2 Square Drive) Truss-Head Screw, Type 305 (100 Pack)
$18.26Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie S08C150TSC (#8 x 1-1/2" #2) Square Drive) Truss-Head Screw, Type 305l (100 Pack)
$25.44Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie S08C250TSC (#8 x 2-1/2" #2) Square Drive) Truss-Head Screw, Type 305 (100 Pack)
$25.11Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie SDWH27600G Strong-Drive (0.276" x 6") SDWH Timber-Hex HDG Screw (300 Pack)
$627.48Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie SDWH27400GR30 Strong-Drive (0.276" x 4") SDWH Timber-Hex HDG Screw (30 Pack)
$42.35Unit price /UnavailableVery low stock (2 units)Simpson Anchors
$28.13Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
$30.89Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
$9.36Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
$146.51Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
$9.36Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie T10J075PXC (#10 x 3/4" #2) Marine Screw, Pan Head - Type 316 (100 Pack)
$26.55Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
$274.06Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie CBHL114R200 Cement Board Screw High-Low Thread T25 Star Drive (200 Pack)
$9.53Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
$263.67Unit price /UnavailableBackorder - Ships In 3-7 Days

Simpson Strong-Tie Self-Drilling Screws
- Simpson Bulk Loose Self-Drilling Screws: Individual screws with hardened drill points that penetrate steel without pre-drilling, ideal for varied applications and custom installations where flexibility is needed
- Simpson Collated Self-Drilling Screws: Strip-fed screws for automatic screw guns that combine drilling capability with high-speed installation for metal framing, roofing, and repetitive applications
Frequently Asked Questions
Can I use these screws with impact drivers?
Can I use these screws with impact drivers?
Yes, most Simpson construction screws are designed for use with impact drivers. However, always start at lower torque settings and adjust as needed to prevent over-driving or stripping. Self-drilling and structural screws particularly benefit from the consistent torque delivery of quality impact drivers.
How do I know which screw length to use?
How do I know which screw length to use?
The general rule is that the screw should penetrate at least 1.5 times the thickness of the material being attached. For structural applications, follow local building codes and Simpson's published specifications.
What's the difference between self-drilling and self-tapping screws?
What's the difference between self-drilling and self-tapping screws?
Self-drilling screws have a drill point that cuts through metal without pre-drilling. Self-tapping screws require a pre-drilled hole but cut their own threads. Simpson's self-drilling screws eliminate the pre-drilling step in most steel applications up to specified thicknesses.
Can I use wood screws in engineered lumber like LVL or LSL?
Can I use wood screws in engineered lumber like LVL or LSL?
Yes, but engineered lumber is typically denser than solid wood. You may need slightly more driving torque, and pilot holes might be beneficial near edges. Simpson structural wood screws are specifically tested with engineered lumber products.