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Technical Specification
PRODUCT NUMBER BST4816ST3516BST4213ST4219BST4219
Type Self-Tapping ScrewSelf-Tapping ScrewSelf-Tapping ScrewSelf-Tapping ScrewSelf-Tapping Screw
Length 16mm16mm13mm19mm19mm
Material SteelSteelSteelSteelSteel
Diameter 4.8mm3.5mm4.2mm4.2mm4.2mm
Diameter Range Up to 10mmUp to 10mmUp to 10mmUp to 10mmUp to 10mm
Finish BlackBlackBlack
Format Single sizeSingle sizeSingle sizeSingle sizeSingle size
Length Range Up to 25mmUp to 25mmUp to 25mmUp to 25mmUp to 25mm
Pieces 100
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Q 1. What size are the BST4216 self-tapping screws?

A. The screws are 4.2 x 16mm.

Q 2. How many screws are supplied in a pack?

A. Each pack contains 100 screws.

Q 3. What head type do the BST4216 screws have?

A. They feature a flanged Pozi head.

Q 4. What finish are these self-tapping screws?

A. The screws have a black finish.

Q 5. What standard are these screws manufactured to?

A. The BST4216 screws are manufactured to BS 4174.

Q 6. How are the screws packaged?

A. They are supplied in a resealable bag, making it easy to store unused screws securely.

Q 7. Are other sizes available in this screw range?

A. Yes. Variants in this range include BST4213 (4.2 x 13mm), BST4219 (4.2 x 19mm), and BST4225 (4.2 x 25mm). Check individual listings for full specifications.

Q 8. What is your returns policy?

A. We accept returns within 30 days of purchase for items that are unused, undamaged, and in their original packaging. Returns are available only for UK-delivered orders and must include proof of purchase. Before returning an item, please contact us at [email protected] to obtain a Return Merchandise Number (RMN). You may also be asked to share images of the product and its packaging for verification. Items that do not meet these conditions will not be accepted for return. If your return is approved, we will initiate a refund to your credit card or original method of payment. A restocking fee of up to 15% of the order value may apply to each returned item.

Q 9. Is next-day delivery available for this product?

A. Next-day delivery is available on most products and will appear as an option at checkout where eligible.

Q 10. When will my order be dispatched?

A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.

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