12 Point Bolts Archives - Engineered Custom Bolts & Screws https://www.engineeredboltandscrew.com/portfolio-category/12-point-bolts/ Custom bolts and screws - cold headed, hot headed, and machined. Socket head, hex head, shoulder screws, and much more.. Thu, 23 Feb 2023 19:32:27 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.1 194122415 MS21250-02004 12-Point Flange Bolts https://www.engineeredboltandscrew.com/portfolio/ms21250-02004-12-point-flange-bolt-manufacturers/ Thu, 23 Feb 2023 19:32:27 +0000 https://www.engineeredboltandscrew.com/?post_type=liquid-portfolio&p=5342 The post MS21250-02004 12-Point Flange Bolts appeared first on Engineered Custom Bolts & Screws.

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These MS21250-02004 12 point flange bolts were manufactured using domestic 8740 AMS 8322P steel material heat treated to AMS 2759/1 F AMS 2759 F to reach hardness of 40-43 HRC. The parts were finished with CAD plating per AMS-QQ-P-416E specification, Type II Class 2. Full certs were provided with the parts to our aerospace customer per order requirements.

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]]> 5342 Custom Automotive 12-Point Flange Bolts With Zinc Flake Finish https://www.engineeredboltandscrew.com/portfolio/custom-automotive-12-point-flange-bolts-with-zinc-flake-finish/ Fri, 09 Dec 2022 16:30:15 +0000 https://www.engineeredboltandscrew.com/?post_type=liquid-portfolio&p=5336 The post Custom Automotive 12-Point Flange Bolts With Zinc Flake Finish appeared first on Engineered Custom Bolts & Screws.

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We had these custom automotive 12-point flange bolts manufactured in grade 8 material (4140 alloy steel) with both low head and high head options. 1/2-13 2A thread was rolled on both version slightly undersized to allow for coating thickness of the Geomet zinc flake + top coat and black sealant. Prior versions of the bolts our automotive customer used were experiencing failures from the hydrogen embrittlement resulting from the use of black zinc electroplating – black Geomet zinc flake coating was used to eliminate this risk and increase corrosion resistance at the same time.

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]]> 5336 Custom 12 Point Flange Bolts With Internal 3/8-16 Thread https://www.engineeredboltandscrew.com/portfolio/custom-12-point-flange-bolts-manufacturers/ Wed, 05 Jan 2022 22:36:22 +0000 https://www.engineeredboltandscrew.com/?post_type=liquid-portfolio&p=5288 The post Custom 12 Point Flange Bolts With Internal 3/8-16 Thread appeared first on Engineered Custom Bolts & Screws.

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We supplied these custom 12 point flange bolts to our automotive customer at 5,000 pieces per size, with size ranging from 12.6MM shoulder diameter X 1.70″ to 12.6MM shoulder diameter X 3.2″. 4140 alloy steel material was used for the production with heat treatment to reach 39-45HRC hardness. Black oxide finish was the last step in the production process. 3/8-16 internal thread was tapped on all size configurations to reach a minimum of 18MM in full thread depth.

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