We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black screw kit with knurled nuts, springs and Allen key

Alphacool

Alphacool NexXxoS XP³ Screw Kit Black 12157

SKU CH-CRH8-C0NKX

Black mounting screw kit with M4 knurled nuts, springs and 45 mm screws for CPU water blocks

  • TypeRadiator
  • Spare mounting kit restores NexXxoS XP³ block performance
  • Black anodised finish matches dark-themed builds visually
  • M4 knurled nuts with 12 mm diameter simplify hand tightening
  • Four M4×45 mm screws and 15 mm springs ensure even pressure
  • Complete 38 g package includes Allen key and washers

Spare Screw Kit for Alphacool NexXxoS XP³

This spare screw kit is designed for the Alphacool NexXxoS XP³ CPU water block and works with other CPU water blocks. It includes an Allen key, plastic washers, knurled nuts, springs and four screws. The kit weighs 38g and features a black finish throughout.

Replaces Lost or Damaged Mounting Hardware

The kit replaces the original mounting set if screws, springs or nuts are lost or damaged during maintenance. It is worth buying when the existing hardware is stripped, corroded or missing, ensuring the water block can be secured again. The black coating matches the original aesthetic of the XP³ block.

Limited to M4 Thread and Fixed Spring Length

The knurled nuts use an M4 inner thread and measure 8x12mm, while the supplied springs are 15mm long. The four screws are M4x45mm, so the kit only fits blocks and radiators that accept this exact thread and length. Builders needing a different thread pitch, spring rate or screw length cannot use this kit.

Highlights

  • Spare mounting kit restores NexXxoS XP³ block performance
  • Black anodised finish matches dark-themed builds visually
  • M4 knurled nuts with 12 mm diameter simplify hand tightening
  • Four M4×45 mm screws and 15 mm springs ensure even pressure
  • Complete 38 g package includes Allen key and washers

Specifications

TypeRadiator

Questions about this item

Will the M4 knurled nuts with 8x12mm dimensions fit my existing CPU water block mounting holes?

The knurled nuts have an M4 inner thread and measure 8mm in height by 12mm in diameter, matching the Alphacool NexXxoS XP³ specification.

Which Allen key size is included, and do I tighten the 45mm screws until the 15mm springs are fully compressed?

The kit includes an Allen key for the M4 screws; tighten until the springs are compressed to provide even pressure, not until they are fully solid.

Are the black M4x45mm screws and springs rated for long-term coolant exposure, or will they need periodic replacement?

The screws, springs and knurled nuts all feature a black finish designed for liquid-cooling environments; inspect annually for corrosion and replace if any discolouration appears.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.