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ProFix 400-Piece Mixed Self-Drilling Screw Assortment, 3.9 × 16 to 5.5 × 50 mm

ProFix

ProFix 400-Piece Mixed Self-Drilling Screw Assortment, 3.9 × 16 to 5.5 × 50 mm

★ 4.5 (n_reviews)

400 Mixed Self-Drilling Screw Assortment in zinc plated, pan and countersunk heads, in a compartmented case, 3.9 × 16 to 5.5 × 50 mm.

$27.99 The price you see is the price you pay: duty and sales tax are already included, so nothing is collected on delivery.
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  • SKU PF-SDS-400
  • ships_from Shanghai, China
  • lead_time 45–60 days door to door
region_note_h Customs and duty: our DDP lanes include import duty and clearance, so the price on this page is the price you pay. Where the $3.48-per-item duty applies to low-value consignments, we group items into sets precisely so the cost is spread rather than multiplied.

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  • Self-drilling point drills its own pilot hole, so there is no separate drilling step
  • Point type stated per variant, because tapping and drilling are not interchangeable
  • zinc plated with a bonded sealing washer on the larger sizes
  • Length and diameter printed on the case, so the right box is grabbed first time

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Shipping methodSea freight DDP — the lower 48 states, door to door
Duty statusDDP — import duty, clearance and door delivery included
Delivery time45–60 days door to door
TypeMixed Self-Drilling Screw Assortment
Range3.9 × 16 to 5.5 × 50 mm
Finishzinc plated
Weight1.4 kg
Packed size22 × 15 × 6 cm

What it is for

Self-tapping and self-drilling screws are the ones that save a step — one cuts its own thread in thin sheet, the other drills its own pilot hole — and the difference between them matters: using a self-tapping screw where a self-drilling one is specified means drilling first, which is the step you were trying to avoid.

The self-drilling screws here carry a No. 2 point for sheet up to 3 mm and are zinc plated. Check the point type and the sheet thickness against the job before ordering; the range of every assortment is printed on the case, and the compartments are sized so the screws do not cross over in transit.

Specification detail

400 Mixed Self-Drilling Screw Assortment covering 3.9 × 16 to 5.5 × 50 mm, zinc plated, pan and countersunk heads with a cross-head drive. Self-drilling sizes carry a No. 2 drill point for sheet up to 3 mm; supplied in a lidded case with the sizes printed in the moulding.

Before you order

Check the size and quantity against your own job first: most returns in this category come from ordering the wrong diameter, finish or pack size rather than from a fault. If you are unsure, send us a photo or a measurement and we will confirm which variant you need.

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