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★Rust-resistant★ Passed the salt spray test for over 2000 hours!!

Introducing the high corrosion-resistant Delta Protect coat for ultra-strength hex socket bolts with a strength class of 14.9.

"I wanted a bolt like this." In response to our customers' strong demand, we developed an "ultra high strength" 14.9 hex socket bolt that exceeds standard specifications. To provide this ultra high strength bolt with high corrosion resistance, we adopted the "Delta Protect Coat." This remarkable product boasts a tensile strength of 1,400 N/mm² while exceeding 2,000 hours of salt spray resistance.

Yura Sangyo Special Sales Department Website 14.9 Hexagon Socket Bolt

basic information

A jointly developed product with a top-tier manufacturer, Kyokuto Seisakusho Co., Ltd., known for its high technical capabilities. This groundbreaking product features hexagon socket bolts classified as strength category "14.9" with a thin film anti-corrosion coating called "Delta Protect." ◆◇Features◇◆ 1. High anti-corrosion performance through cathodic sacrificial protection 2. High permeability with no liquid pooling in the hexagon socket 3. Does not cause hydrogen embrittlement 4. Thin and uniform coating ◆◇Mechanical Properties◇◆ Material: KNDS4 (Kobe Steel, Ltd.) high-strength bolt steel Hardness: HRC44~50 Tensile Strength: 1,400N/mm² Elongation: 9% Dimension Standard: JISB1176 (excluding the neck radius) Thread Type: ISO5855-1 MJ thread (aerospace use) Thread Grade: Based on ISO5855-1 * After treatment, the maximum allowable tolerance for the thread is 4h. Surface Treatment: Delta Protect Base Coat: "KL100 x 2 coats" Top Coat: "VH300 x 1 coat" Please refer to the catalog for stock dimensions and details.

Price information

Prices may vary depending on quantity and size, so please feel free to contact us.

Delivery Time

Please contact us for details

The delivery date may vary depending on the quantity, so please contact us for more details.

Applications/Examples of results

Improvement of maintenance cycles and for fixing molds, etc. Replacement of existing bolts in equipment as a measure against bolt breakage, etc. Compact design that achieves weight reduction and miniaturization.

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