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$21.99
jtum 12Pcs Bike Bolts M5x18mm Titanium Coated, High Strength Alloy Steel Hexagon Socket Head Cap for Bicycle Stem Saddle, 0.8mm Thread Pitch with Washers โ€” image 1
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jtum 12Pcs Bike Bolts M5x18mm Titanium Coated, High Strength Alloy Steel Hexagon Socket Head Cap for Bicycle Stem Saddle, 0.8mm Thread Pitch with Washers

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$21.99
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About this item
  • Complete High Strength Bolt Set For Your Bike: You Will Receive 12 Pieces of M5x18mm Hexagon Socket Head Cap Bolts. This Bike Bolts Set Is Designed As a Replacement For Your Bicycle Stem, Saddle, Seatpost Clamp or Other M5 Thread Components. Suitable For Mountain Bikes, Road Bikes and Hybrid Bicycles.
  • Precise M5x18mm Size With 0.8mm Thread Pitch: Each Bolt Features Metric M5 Thread With 18mm Length and Standard 0.8mm Thread Pitch. The Cylindrical Head Design With Hexagon Socket Drive Allows For Easy Installation and Removal Using a 4mm Allen Wrench. Please Check Your Bike's Thread Size Before Ordering.
  • High Strength Alloy Steel Construction: Made From Medium Carbon Alloy Steel, These Stem Bolts Offer Good Tensile Strength and Durability. The High Strength Material Ensures Reliable Performance Under Vibration and Load, Making Them Good For Critical Bicycle Components Like Stems and Saddles.
  • Titanium Coated Finish For Corrosion Resistance: The Bolts Feature a Titanium Coated Surface Finish That Provides Enhanced Corrosion Resistance and a Good Look. This Coating Helps Protect Against Rust and Wear, Ensuring the Screws Maintain Their Appearance and Performance Even After Prolonged Use in Various Weather Conditions.
  • Wide Application For Bike Stem Saddle and More: These M5x18mm Hex Bolts Are Universally Compatible With Most Bicycle Stems, Saddles, Seatpost Clamps, Brake Levers and Derailleur Components That Use M5 Threads. They Are a Good Replacement or Upgrade For Worn or Rusted Screws. A Good Gift For Cyclists and Bike Mechanics.
Product description

Product: jtum M5x18mm Titanium Coated High Strength Bolts Package Includes: - 12 x M5x18mm Hexagon Socket Head Cap Bolts - 12 x Flat Washers (as shown) Specifications: - Thread Size: M5 (Metric) - Length: 18mm - Thread Pitch: 0.8mm - Head Type: Cylindrical / Socket Head Cap - Drive Type: Hexagon Socket (Allen Key) - Allen Key Size: 4mm - Material: Medium Carbon Alloy Steel - Finish: Titanium Coated - Quantity: 12 Pieces Per Pack Key Features: - High strength medium carbon alloy steel - Titanium coated finish for corrosion resistance - Precise M5x18mm metric thread with 0.8mm pitch - Hexagon socket drive for easy installation - Standard 4mm Allen key fitment - Replacement for stem, saddle, seatpost bolts Compatible Applications: Bicycle Stem, Bicycle Saddle, Seatpost Clamp, Brake Lever Mount, Derailleur Mount, Fender Mount, Bottle Cage, Other M5 Thread Components Installation Tips: 1. Use a 4mm Allen wrench (hex key) for installation 2. Apply thread locker for critical components like stems 3. Tighten to manufacturer's recommended torque (5-8 Nm for stems) 4. Do not overtighten to avoid thread damage 5. Replace bolts if any sign of stripping or damage Notice: - Please confirm your bike requires M5x18mm bolts before purchasing - Check both thread size (M5) and length (18mm) - For stem bolts, replace all bolts at the same time - Professional installation recommended for critical components

Product details
Brand
jtum
Manufacturer
jtum
Material
Medium-carbon alloy steel
Size
M5x18mm
Part number
jtum-M5LuoSi12

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10 Trustpilot reviews total, with 2 shown at a time.

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Excellent
4.5 average rating
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Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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jtum 12Pcs Bike Bolts M5x18mm Titanium Coated, High Strength Alloy Steel Hexagon Socket Head Cap for Bicycle Stem Saddle, 0.8mm Thread Pitch with Washers | Bigamart