Phone Phone 01926754100 Cart Cart
Fit guarantee icon
FIT GUARANTEE or Hassle-Free Returns
Quick delivery icon
QUICK DELIVERY On All Products Across UK
Customer support icon
GREAT SUPPORT 24/7 Support For Any Query
rating icon
TOP RATED Trusted by Our Customers
  • Ratings Standard Delivery: £5.99
  • Next day Next Day Delivery Available
  • Delivery Delivery Estimate: 2 to 4 working days
  • Save Extra Save Extra With 1 Offer
  • Ratings Compare With Similar Items
  • Use promo code "RMPK1" to get Additional 1% OFF
Compare with Similar products
Technical Specification
PRODUCT NUMBER SDHX6338SDHX5550SDHX6350SDHX4225SDHX4825
Type Self-Drilling ScrewSelf-Drilling ScrewSelf-Drilling ScrewSelf-Drilling ScrewSelf-Drilling Screw
Length 38mm50mm50mm25mm25mm
Material SteelSteelSteelSteelSteel
Diameter 6.3mm5.5mm6.3mm4.2mm4.8mm
Diameter Range Up to 10mmUp to 10mmUp to 10mmUp to 10mmUp to 10mm
Finish Zinc platedZinc platedZinc platedZinc platedZinc plated
Format Single sizeSingle sizeSingle sizeSingle sizeSingle size
Length Range 26-50mm26-50mm26-50mmUp to 25mmUp to 25mm
Standard DIN 7504K
Show More

Q 1. What size are these self-drilling screws?

A. The screws are 5.5 x 38mm.

Q 2. What head type do these screws have?

A. They have a hex head.

Q 3. Are the screws zinc plated?

A. Yes, the screws are zinc plated.

Q 4. What standard do these screws conform to?

A. The screws conform to DIN 7504K.

Q 5. How many screws are included in the pack?

A. The SDHX5538 is supplied in a pack of 100.

Q 6. How are the screws supplied - loose or in a bag?

A. The screws are supplied in a resealable bag.

Q 7. Are there other sizes available in this self-drilling hex head screw range?

A. Yes, several variants are available in the same range. SDHX4213 and SDHX4219 and SDHX4225 are smaller diameter versions in varying lengths, and SDHX4813 is another size variant. Please refer to each product listing for full size details.

Q 8. What are the alternative self-drilling screw products available?

A. Alternatives serving a similar function include SDHX5525 and SDHX5550, which are the same diameter in shorter and longer lengths respectively, SDHX6325 which is a larger diameter option, and AB061SDH which is another self-drilling hex head alternative. Please refer to each product listing for full specifications.

Q 9. What payment methods do you accept?

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

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.

Get exclusive updates on offers & latest trends in construction industry

By sharing your email, you agree to our privacy policy & terms of service