Tag: fasteners
Sourcing guides from Johnny's Hardware on this topic — specifications, packaging, quality checks and export planning.
Pilot Hole Size Chart for Wood Screws and Lag Screws
A #8 wood screw needs a 7/64 inch pilot hole in softwood and 1/8 inch in hardwood. Pilot, clearance and countersink sizes…
Drywall Screw Size and Length: What to Use for 1/2 and 5/8 Drywall
Use 1-1/4 inch coarse screws for 1/2 inch drywall on wood studs and 1-5/8 inch for 5/8 inch. The building code rule…
Types of Nuts and Bolts: A Buyer’s Guide by Function
The main types of nuts and bolts grouped by the job each one does rather than by shape, with ISO and DIN…
Bolt vs Screw: What Actually Separates Them
The ASME B18.2.1 test for telling a bolt from a screw, why every common rule of thumb fails, the trade names that…
M8 Bolt Size and How to Read Metric Bolt Designations
What M8 x 1.25 x 40 actually measures, why an M8 bolt takes a 13 mm spanner, a full M3-M24 pitch and…
Nut vs Bolt: The Difference and What It Means for Your Order
A bolt is externally threaded, a nut internally. The difference that costs money is that one fixing is three order lines, with…
Bolt Torque Chart: Specs by Size, Grade and Condition
Bolt torque specs by size and grade in ft-lb and Nm, dry and lubricated, plus the friction condition that makes published charts…
Screw Size Chart: Gauge, Metric, Thread Pitch and Pilot Holes
Screw size charts for gauge, metric, thread pitch and pilot holes, plus the length measuring convention that changes with head type and…
Screw Head Types: 12 Shapes and How to Specify Them
The twelve screw head types explained, what each is used for, and the 82 vs 90 degree countersink detail that stops heads…
What Is a Self-Tapping Screw? Types, Points and Specs
A self-tapping screw forms its own thread as it is driven. Here is how it differs from self-drilling, the point types, and…
Send your product list and sourcing question.
We can help confirm suitable specs, packaging options, MOQ and shipment planning before you place an order.