Lifted from a much earlier post here on Reddit.

Complete List of Boosted Board V2+ Screws (Hardware)

I've put together a complete list of Boosted Board V2+ screws (aka hardware). I figured someone else could use it when they need to replace their gear.

HARDWARE

Most screws are an M4 x 0.7mm, socket head cap screws (SHCS) with variations in length for each component taking a 3mm hex key (driver). The exceptions are the battery screws which take a 4mm hex and have a flat head.

Skid Plate Screws — M4 x 0.7mm, 6mm long, 3mm driver, stainless-steel

1. $6.14 for 20 at Amazon (stainless-steel)
2. $7.86 for 25 at McMaster (stainless-steel)
3. $6.32 for 10 at Home Depot (stainless-steel)

Motor Cap Screws — M4 x 0.7mm, 10mm long, 3mm driver, zinc-plated

1. $6.36 or 20 at Amazon (stainless-steel)
2. $7.21 for 25 at McMaster (stainless-steel)
3. $0.55 for 3 at Home Depot (zinc-plated)

Motor Mount (Belt Tightening) Screws — M4 x 0.7mm, (12mm?) long, 3mm driver, zinc-plated

1. $6.54 or 20 at Amazon (stainless-steel)

Wheel Nuts — 5/16in, 24 thread, lock nut, zinc-plated

1. $4.95 for 4 (includes 8 washers) at Amazon (zinc-plated)
2. $6.01 for 25 at McMaster (stainless-steel)

Deck Mounting Screws — 1.25-1.75in, zinc-plated (hex flat not SHCS)

1. $10.61 for 8 (includes 8 nuts) at Amazon (stainless-steel)

Front Bearings — Longboard Bearings with Loose Spacers

1. $17.94 for 8 at Amazon (Bones)

Rear Outside Bearings — Longboard Bearings with No Spacers

1. Use front bearings without spacers

Rear Inside Bearings — 6804-2RS Sealed Bearings

1. $7.17 for 2 at Amazon (sealed)
2. $14.95 for 1 at Amazon (sealed)

Truck to Motor Mount (Driver) Screws — M6 x 18mm, stainless-steel (hex flat not SHCS)

1. $11.13 for 25 at McMaster (stainless-steel)

Battery Screws — M6 x 20mm, stainless-steel (hex flat not SHCS)

1. $9.02 for 25 at McMaster (stainless-steel)

Additional Recommendations

The following are additional items I've found and/or used that I think you should check out too.

Repair

1. $27.23 at Amazon M4 x 0.7mm thread repair kit
2. $10.99 at Amazon Screw Extractor/Remover

Tools

1. $8.69 at Amazon Mobarel 3mm Ball Point Hex Key
2. $6.98 at Amazon Zeato All-In-One Skate Tool

Safety Gear

1. $39.95 at Amazon Cycle Torch 500 Lumens USB Bike Light
2. $79.95 at Amazon 187 Killer Pads Pro Knee Pads
3. $42.95 at Amazon 187 Killer Pads Pro Elbow Pads
4. $16.44 at Amazon Bladegear XT Wristguard
5. $11.99 at Amazon Hoomil Winter Touchscreen Gloves
6. $19.99 at Amazon Illumiseen LED Reflective Belt (Battery Powered)
7. $129.99 at Amazon Demon Podium Full-Face Helmet (with MIPS)

Upgrades

1. $15 — Romp Shock Guard
2. $55 — HyperDrive Lifetime Belts
3. $89 — Aluminum Skid Plate
4. $340-400 — Large Wheel Conversion Kits
   1. 97mm wheels
   2. 68 tooth pulleys

Edit: Changed deck mounting screws length to include a range. My board needs a 1.75 because of risers and the Romp shock guard.

Edit2: Changed "Motor Mount" to "Truck to Motor Mount" after taking my board apart". Added "Motor Mount (Belt Tightening) Screws after noticing it was missing.