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🛠️ Lock in strength and style with bolts that outlast the rest!
These Type 316 stainless steel hex head bolts (1/4-20 x 1/2") come in a pack of 25, offering marine-grade corrosion resistance and durability. Featuring coarse threads and a standard hex head, they deliver reliable fastening performance in chemical, saltwater, and coastal environments where lesser grades fail.
| ASIN | B01NBJT5OR |
| Best Sellers Rank | #33,761 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #131 in Hex Bolts |
| Brand | Marine Bolt Supply |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.7 out of 5 stars 125 Reviews |
| Drive System | External Hex |
| Exterior Finish | Stainless Steel |
| Fastener Size | 1/4-20 x 1/2" |
| Fastener Type | Hexagon Bolt |
| Finish Types | Glossy |
| Grade Rating | Marine Grade |
| Head Style | Hex |
| Head Type | Hex |
| Item Diameter | 0.25 Inches |
| Item Hardness | marine grade |
| Manufacturer | CMC Industrial Supply |
| Manufacturer Grade | Grade 316 |
| Material | Type 316 Stainless Steel |
| Material Type | Type 316 Stainless Steel |
| Number of Pieces | 25 |
| Part Number | 6-FHC |
| Screw Head Style | Hex |
| Screw Point Style | Hex |
| Size Name | 1/4-20 x 1/2" |
| Thread Class | 1B |
| Thread Coverage | Partially Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Coarse |
| Thread Type | Coarse Threaded |
| UPC | 634385957132 |
| Unit Count | 25 Count |
F**.
Súper
Excellent, good 316 stainless steel
T**D
Exactly as expected
Received expected product. No complaints.
J**E
Exelent
Exelent
P**D
Quality stainless steel bolts
I needed stainless steel bolts that were 1-1/4" long for use with concrete drop-in anchors for swimming pool safety rail installation. This is not a length readily available at Home Depot, Lowes, or my local hardware store and so I ordered via Marine Bolt Supply. They appear to be of very high quality and did the job. I am a mechanical engineer by training and have seen some poor quality hardware evidently sourced from questionable suppliers but these bolts were perfect.
B**D
Used as replacement keel bolts for a Catalina 22 Swing ...
Used as replacement keel bolts for a Catalina 22 Swing Keel. Replacing these 4 bolts every couple years is cheap insurance!
L**T
Great quality product at a very good price
DIY Projects and repairs to replace some rusting bolts
J**W
Five Stars
As described. No complain. Used all to build my mpcnc.
A**R
Misleading Photos
Misleading photos, the bolts I purchased showed the unthreaded section as 1/4 of the shaft, the bolts that I received are threaded on half of the shaft. Hopefully I can still use them.
Trustpilot
2 weeks ago
1 week ago