Unifix Chippy Woodscrews 5.0 x 80/53mm in a trade tub of 900. The 80mm total length with 53mm partial thread is designed for thicker timber assemblies where you need the unthreaded shank to pull two pieces together without the thread pushing them apart. The plain shank slides through the top piece while the thread grips the bottom, clamping the joint tight.

Pozi drive with double countersunk head sits flush and pulls the workpiece tight. Single coarse thread at 40° gives fast driving and a strong grip. ZYP (zinc and yellow passivated) finish provides corrosion protection for interior use. CE approved to European construction product standards.

Features

• Pozi drive with positive engagement, reduced cam-out
• Double countersunk head sits flush with extra pull-down strength
• Partial thread (53mm) with plain shank for proper clamping action
• ZYP finish for corrosion resistance in dry interior environments
• CE approved
• Tub of 900 keeps screws organised on site

Best For

Heavier structural joinery, fixing doubled-up joists, staircase strings, newel post fixings, and any joint where you're pulling thick timber sections together. The partial thread and plain shank give a true clamping action that full-thread screws can't match at this length.

Specifications

• Size: 5.0 x 80mm (53mm thread)
• Head: Double countersunk (PZ2)
• Thread: Single coarse, 40°, partial
• Finish: Zinc & Yellow Passivated
• Material: Steel, CE approved
• Tub quantity: 900
• Product code: UCCHIPPYT/115