Best Knurled Head Bolts in 2026
Daisy
Last Updated: Feb 11, 2026
Daisy
Last Updated: Feb 11, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Flo-Torq II is the world's first modular hub system for outboard and sterndrive engines
Field serviceable: No need to miss time on the water waiting for rubber hub replacement work
Flo-Torq hub systems cushion and protect the drivetrain from most impacts
For use with Mercury/Mariner 40-60 HP Command Thrust, Force 90-120, and Fourstroke 150-300 (six-cylinder with 1" shaft only).
For use with MerCruiser Alpha, Alpha One & Bravo One (under 400 HP)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Partsology | 9.51 | ✅ | ✅ | ✅ |
THIS IS BRAND NEW: DNJ® Head Bolt Kit
FITS: 03-16 Toyota, Lexus 2.5L-4.0L V6 DOHC Naturally Aspirated 1GR-FE,2GRFE,2GR-FSE,2GR-FXE,4GR-FSE
FITMENT NOTES: One Set Services Complete Engine
DNJ Engine Components is a full line provider of Domestic & Japanese engine parts for cars and trucks.
We carefully selected DNJ Engine Components as the sole provider. DNJ has a 30+ year track record of quality, experience, and trust. It makes sense for us to carry a brand that would help us earn customer loyalty in the long run
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| oversee2019 | 5.08 | ❌ | ❌ | ❌ |
Ref.code: 22-813435
Plug Assy-Reservoir For Mercury Mercruiser Quicksilver
Parcel: 2pcs/packet
Attention: This plug is only for 809885A1 starter
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Product Name: Square Head Bolt; Material: Carbon Steel; Finish: Zinc Plated; Color: Silver Tone; Thread Size: M6 x 20mm / M6 x 0.79"(D*L); Pitch: 1mm
Head Size: 10mm x 10mm x 2mm / 0.39" x 0.39" x 0.08"(L*W*T); Package Content: 10 x Square Head Bolt
Advantage: Square head bolt offers a large bearing area, is made of carbon steel, zinc plated finish to prevent rust, high strength, good wear resistance and good impact resistance, and durable.
Application: Square head bolt can be used for toilet lid installation, and it is also widely used in the assembly and maintenance of machinery, railroad, electrical connections, construction, some assembly required furniture and DIY project. Such as the assembly and fixing of guardrails, home appliances, pipeline installations, equipment, steel-framed houses, etc.
Installation: A wrench/plier is required for installation. Generally, with a nut and a washer to form a fastener device(Not in the package).
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AutoPartsKart | 9.54 | ❌ | ❌ | ❌ |
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
Validated for fit, form and function
Unsurpassed quality you can trust
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Partsology | 9.51 | ❌ | ❌ | ❌ |
THIS IS BRAND NEW: DNJ® Head Bolt Kit
FITS: 95-04 Ford, Mazda, Mercury 2.0L L4 DOHC Naturally Aspirated
FITMENT NOTES: One Set Services Complete Engine
DNJ Engine Components is a full line provider of Domestic & Japanese engine parts for cars and trucks.
We carefully selected DNJ Engine Components as the sole provider. DNJ has a 30+ year track record of quality, experience, and trust. It makes sense for us to carry a brand that would help us earn customer loyalty in the long run
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Package Dimensions: 7.09" (L) x 1.18" (W) x 0.98" (H)
Product Type: Auto Part
Package Quantity: 1
Country Of Origin: China
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GM FORD CHRYSLER JEEP DODGE RAM OEM PARTS | 8.64 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| RadleyGMWholesale | 9.08 | ❌ | ❌ | ❌ |
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Dnj | 2 |
| General Motors | 2 |
| Fel-Pro | 1 |
| Hyundai | 1 |
| Oversee | 1 |
| Quicksilver | 1 |
| Toyota | 1 |
| Uxcell | 1 |
We've carried out a comprehensive analysis of 1,480 reviews on knurled head bolts, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select knurled head bolts priced around $23.92, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 10 knurled head bolts for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
We are dedicated to assisting our users in finding the right bolts Products based on their needs, saving them considerable time when choosing which knurled head bolts to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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