Skip to product information
1 of 7

M6 x 55mm Socket Head Cap Screws Bolts 12.9 Grade Alloy Steel Metric Machine Hex Socket Screw, Fully Threaded, Black Oxide Finish, 20PCS - size: M6×55mm

M6 x 55mm Socket Head Cap Screws Bolts 12.9 Grade Alloy Steel Metric Machine Hex Socket Screw, Fully Threaded, Black Oxide Finish, 20PCS - size: M6×55mm

Regular price $16.58 USD
Regular price Sale price $16.58 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • Ultimate 12.9 Grade Strength: Constructed from highest-grade 12.9 alloy steel, these screws deliver maximum tensile strength and shear resistance, engineered for critical automotive, machinery, and structural applications where failure is not an option.
  • Enhanced 55mm Grip Length: The extended 55mm fully threaded design provides deeper penetration and superior holding power for thick materials, making it ideal for heavy-duty fabrication, industrial brackets, and machinery assembly.
  • Industrial Black Oxide Protection: Features a durable black oxide finish that enhances corrosion resistance and provides a tough, wear-resistant surface capable of withstanding harsh workshop environments and chemical exposure.
  • Stripping-Resistant 5mm Hex Drive: Precision-machined 5mm internal hex socket ensures secure tool engagement and allows for high-torque installation with standard Allen keys, preventing cam-out and head damage.
  • Optimized 20-Piece Quantity: This practical 20-count package offers the perfect balance for professional projects, providing sufficient quantity for multiple installations while maintaining the highest quality standards.

Overview

  • Material: Alloy Steel
  • Thread Size: M6
  • Exterior Finish: Black Oxide
  • Manufacturer Grade: Grade Alloy
  • Head Style: Socket
Quantity

Low stock: 10 left

View full details
  • ⭐⭐⭐⭐⭐

    Ethan Miller — Seattle, Washington

    GripReady has a practical selection of climbing essentials that fits well into my regular gym routine. The items I ordered were simple to use, easy to organize, and useful for preparing before each session. Everything arrived as expected, and I would shop here again.

  • ⭐⭐⭐⭐⭐

    Olivia Turner — Austin, Texas

    I picked up a few training and hand-care accessories, and they have been convenient additions to my climbing bag. The products feel straightforward without unnecessary features, and the store made it easy to find items for both training and post-session care.

  • ⭐⭐⭐⭐⭐

    Ryan Cooper — Denver, Colorado

    I like that GripReady brings together different climbing essentials in one place. The products I received worked well for my home training setup and indoor climbing sessions. They were easy to understand, practical to store, and suited my everyday routine.

  • ⭐⭐⭐⭐⭐

    Mia Bennett — Portland, Oregon

    The climbing accessories I ordered have been useful for keeping my gear more organized and my sessions better prepared. The selection feels focused on products climbers can actually use regularly, from training tools to small gym-bag essentials.

FAQ

What types of products does GripReady sell?

GripReady offers products for bouldering, indoor climbing, grip and finger training, hand and skin care, climbing chalk, chalk bags, hangboards, climbing holds, recovery tools, and gear organization. Please review each product page for its intended use and specifications.

How much does shipping cost?

We generally charge a flat shipping fee of $6.90 per order. The final shipping charge will be displayed at checkout before you complete your purchase. Customs duties, import taxes, and other international fees are not included unless specifically stated.

How long does order processing take?

Orders are generally processed within 1–3 business days, Monday through Friday, excluding public holidays. Processing may take up to 5 business days during peak periods, inventory checks, or payment verification.

How long will delivery take?

Estimated delivery after shipment is approximately:

United States: 5–10 business days

International destinations: 10–20 business days

Delivery times are estimates and may vary because of carrier delays, customs processing, weather, holidays, or other circumstances outside our control.

How can I track my order?

When tracking information becomes available, we will send a shipping confirmation email containing your tracking number or tracking link. Tracking may take several business days to show its first update after a shipping label is created.

Can I change or cancel my order?

Please contact us as soon as possible at housbirdcempo@gmail.com. We cannot guarantee changes or cancellations once an order has entered processing, been packed, or shipped. A request is confirmed only after you receive written confirmation from GripReady.

What is your return policy?

Eligible products may be returned within 30 calendar days after delivery. Products must generally be unused and returned with their original packaging, accessories, labels, and instructions. Opened hand-care products, used climbing equipment, customized items, and products marked as final sale may not be eligible. Please review our Return & Refund Policy before sending anything back.

What should I do if my order arrives damaged, defective, or incorrect?

Contact housbirdcempo@gmail.com as soon as reasonably possible. We recommend reporting the issue within 7 calendar days after delivery. Include your order number and clear photographs of the product, packaging, shipping label, and any visible damage. Please keep all packaging until the issue is resolved.

How do I know whether a product is suitable for my climbing setup?

Review the product dimensions, intended use, mounting method, weight limit, compatibility information, manufacturer instructions, and safety warnings before purchasing. Products must not be used for belaying, fall arrest, rescue, anchoring, or other life-support purposes unless they are expressly designed and certified for that specific use.

How can I contact GripReady customer support?

Email us at housbirdcempo@gmail.com with your name, order number, and a clear description of your question. We aim to respond within 1–2 business days, Monday through Friday, excluding public holidays and unusually busy periods.