The AR727410 is a bag of eight M4 x 10mm double socket button head screws, used across twenty-nine models from the 1/10 Vorteks up to the 1/5 Kraton and Outcast 8S.

Double socket means a hex drive at both ends — a 2.5mm hex in the head and a 2.0mm hex in the opposite end of the shank. The screw can be driven or removed from either side, which is what makes it useful in locations where the head is buried behind a suspension arm, a bulkhead or bodywork and a driver cannot reach it. If you have ever had to strip half an assembly to back out one fastener, this is the design that avoids it.

Because the drive is at both ends, a rounded socket at one end does not necessarily mean the screw is stuck. Try the other end before resorting to an extractor.

Also listed under Horizon's numbering as ARAC9870. Both part numbers refer to this same screw.

Features

• M4 x 10mm thread and length
• 2.5mm hex drive in the head, 2.0mm hex in the opposite end
• Fits and removes from either end
• Strong steel construction
• Bagged in eights so spares are always on hand

Fits

Per Arrma's compatibility listing, used across twenty-nine current models:

• 1/10 — Kraton 4S (ARA4408V2, ARA102690), Outcast 4S (ARA4410V2, ARA102692), Vorteks 223S 4X4 (ARA4305V4), Vorteks 3S 4X4 (ARA4305V3, ARA4305V3B), Vorteks 223S DSC 2WD (ARA3505), Vorteks 2WD (ARA3205, ARA3205S), Vorteks BOOST 2WD (ARA4105V4, ARA4105SV4)
• 1/8 — Kraton 6S (ARA8608V6), Kraton 6S EXB (ARA8708V6), Notorious 6S (ARA106044, ARA8611V5, ARA8611V6), Outcast 6S (ARA106042, ARA106060), Outcast 6S EXB AVC (ARA8710)
• 1/7 — Infraction 6S (ARA109001), Infraction 6S AVC (ARA7615V2), Limitless 6S (ARA109011)
• 1/5 — Kraton 8S (ARA110002), Kraton 8S EXB Roller (ARA5208), Kraton 8S EXB AVC (ARA5808V2T1), Outcast 8S AVC (ARA5810), Outcast 8S EXB Roller (ARA5210), Outcast 8S EXB AVC (ARA5810V2T1)

Standard M4 x 10mm double socket hardware. Check your manual for the correct screw at each location — Arrma supplies this screw type in several lengths.

Includes

8 x Double Socket Button Head Screw, M4x10mm (AR727410 / ARAC9870)