The ServoCity M4 Socket Head Screw Assortment Pack is an essential collection for construction and assembly tasks, featuring socket head screws designed to minimize the risk of head rounding during tightening or removal. These screws are crafted with a 7mm outer diameter, providing a substantial surface area for secure fastening against hard materials like steel and aluminum. For applications involving softer materials, the use of a washer is recommended to enhance the contact footprint. This assortment pack includes a variety of the most frequently utilized screw sizes, all neatly organized within a durable plastic case, ensuring convenience and accessibility for various projects.
25x 2800 Series Zinc-Plated Steel Socket Head Screw (M4 x 0.7mm, 6mm Length)
25x 2800 Series Zinc-Plated Steel Socket Head Screw (M4 x 0.7mm, 8mm Length)
25x 2800 Series Zinc-Plated Steel Socket Head Screw (M4 x 0.7mm, 10mm Length)
25x 2800 Series Zinc-Plated Steel Socket Head Screw (M4 x 0.7mm, 12mm Length)
25x 2800 Series Zinc-Plated Steel Socket Head Screw (M4 x 0.7mm, 16mm Length)
25x 2800 Series Zinc-Plated Steel Socket Head Screw (M4 x 0.7mm, 55mm Length)
25x 2801 Series Zinc Plated Steel Washer (4mm ID x 8mm OD)
25x 2809 Series Zinc-Plated Steel Split-Lock Washer (4mm ID x 7mm OD)
25x 2811 Series Zinc-Plated Steel Hex Nut (M4 x 0.7mm Hex)
25x 2812 Series Zinc-Plated Steel Nylon-Insert Locknut (M4 x 0.7mm Hex)
1x ServoCity M4 Socket Head Screw Assortment Pack
Head style requires a 3mm hex key
7mm OD ensures sufficient surface area for hard materials
Compatible with steel and aluminum
Use with a washer for softer materials to enlarge the footprint
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at RoboItchi's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RoboItchi's troubleshooting process or of a verified shipping error by RoboItchi.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A ¥10,000 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RoboItchi's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RoboItchi and ordered specifically to fulfill a customer request.
To request a return, submit a support ticket from your account under My Support Tickets to obtain a Return Authorization (RA) number. Returns without an RA number will be refused.