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Technical Specification
PRODUCT NUMBER ST4238ST4838ST4225BST4225BST4825
Type Self-Tapping ScrewSelf-Tapping ScrewSelf-Tapping ScrewSelf-Tapping ScrewSelf-Tapping Screw
Length 38mm38mm25mm25mm25mm
Material SteelSteelSteelSteelSteel
Diameter 4.2mm4.8mm4.2mm4.2mm4.8mm
Diameter Range Up to 10mmUp to 10mmUp to 10mmUp to 10mmUp to 10mm
Finish BlackBlack
Format Single sizeSingle sizeSingle sizeSingle sizeSingle size
Length Range 26-50mm26-50mmUp to 25mmUp to 25mmUp to 25mm
Pieces 100
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Q 1. What size are the ST6338 screws?

A. The screws measure 6.3 x 38mm.

Q 2. What head type and drive are the ST6338 screws?

A. They have a countersunk head with a Pozi drive.

Q 3. What standard are the ST6338 screws manufactured to?

A. They are manufactured to DIN 7982.

Q 4. How many screws are included in the ST6338 pack?

A. The pack contains 100 screws.

Q 5. How are the ST6338 screws supplied?

A. They are supplied in a resealable bag.

Q 6. Is a larger size variant available in the same self tapping screw range?

A. Yes. The ST6351 is a variant in the same range, offering the same countersunk Pozi self tapping screw in a 6.3 x 51mm size.

Q 7. Is this a genuine Sealey product?

A. Yes. Parts for Machines supplies genuine Sealey products.

Q 8. What payment methods do you accept?

A. We accept all major credit and debit cards, along with PayPal.

Q 9. Can I ask questions about this product before ordering?

A. Yes - WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility, and we'll help you choose the right product.

Q 10. 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.

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