{"id":896,"date":"2026-03-08T20:31:57","date_gmt":"2026-03-08T20:31:57","guid":{"rendered":"https:\/\/pennaero.com\/mac-fasteners\/?post_type=trm_product_page&#038;p=896"},"modified":"2026-03-08T20:33:54","modified_gmt":"2026-03-08T20:33:54","slug":"hex-head","status":"publish","type":"trm_product_page","link":"https:\/\/pennaero.com\/mac-fasteners\/products\/hex-head\/","title":{"rendered":"Hex Head"},"content":{"rendered":"\n<section id=\"\" class=\"section padding-vertical-md  has-background-image\" style=\"background: linear-gradient(270deg, rgba(10, 10, 10, 0.00) 0%, #0a0a0a 100%), url(https:\/\/pennaero.com\/mac-fasteners\/wp-content\/uploads\/sites\/18\/2026\/03\/49416749bbfcd03cde1d02fb0eaa780704f8372d.png) lightgray center\/cover no-repeat;\">\n  <div class=\"container layout-flex\">\n    <div class=\"acf-innerblocks-container\">\n\n<div class=\"hero  \">\n    <h1>Hex Head<\/h1>\n  \n    <div class=\"text-container\">\n    <p>High-volume AN, MS, and NAS specification fasteners manufactured for structural aerospace applications.<\/p>\n  <\/div>\n  \n  <div class=\"buttons\">\n        <a class=\"button button-primary button-one\" href=\"https:\/\/pennaero.com\/mac-fasteners\/contact-us\/\" target=\"_self\">Contact Us<\/a>\n    \n        <a class=\"button button-secondary button-two button-outline\" href=\"https:\/\/pennaero.com\/mac-fasteners\/our-products\/\" target=\"_self\">All Products<\/a>\n      <\/div>\n<\/div>\n\n<\/div>  <\/div>\n<\/section>\n\n\n\n<section id=\"\" class=\"section padding-vertical-md  background-color-none\">\n  <div class=\"container layout-flex\">\n    <div class=\"acf-innerblocks-container\">\n\n<div class=\"grid-wrap grid-2-columns grid-55-45 gap-xl\">\n  <div class=\"acf-innerblocks-container\">\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-ab686fcb wp-block-group-is-layout-flex\">\n<p class=\"has-large-font-size wp-block-paragraph\"><strong>MAC\u2019s hex head bolts are manufactured to AN, MS, and NAS aerospace specifications and engineered for structural assemblies requiring high tensile strength, fatigue resistance, and dimensional consistency.<\/strong><\/p>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\">Produced from aerospace-grade alloys including A286 stainless steel and 8740 alloy steel, these fasteners support primary and secondary airframe structures operating under demanding mechanical and thermal conditions<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-ab686fcb wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading\">Key Features<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Manufactured to AN, MS, and NAS aerospace standards<\/strong><\/li>\n\n\n\n<li><strong>Aerospace-grade materials including A286 and 8740 alloy steel<\/strong><\/li>\n\n\n\n<li><strong>Precision head and thread geometry<\/strong><\/li>\n\n\n\n<li><strong>High tensile and fatigue performance<\/strong><\/li>\n\n\n\n<li><strong>Corrosion resistance for demanding environments<\/strong><\/li>\n\n\n\n<li><strong>Compatible with automated assembly systems<\/strong><\/li>\n<\/ul>\n<\/div>\n\n<\/div><\/div>\n\n<\/div>  <\/div>\n<\/section>\n\n\n\n<section id=\"\" class=\"section padding-vertical-md  background-color-white\">\n  <div class=\"container layout-flex\">\n    <div class=\"acf-innerblocks-container\">\n\n<div class=\"grid-wrap grid-2-columns grid-55-45 gap-xl\">\n  <div class=\"acf-innerblocks-container\">\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-ab686fcb wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading\">Available Configurations<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MAC hex head bolts are produced across a range of aerospace-standard sizes and material options to support structural load requirements and installation constraints.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AN, MS, and NAS <\/strong>part number coverage<\/li>\n\n\n\n<li><strong>Multiple grip lengths and thread configurations<\/strong><\/li>\n\n\n\n<li><strong>A286 stainless steel<\/strong> for elevated temperature applications<\/li>\n\n\n\n<li><strong>8740 alloy steel<\/strong> for high strength-to-weight performance<\/li>\n\n\n\n<li><strong>Plating and finishing options <\/strong>per aerospace specification<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"product-card \">\n  <!-- We want to wrap image in link, if link exists -->\n        \n    <div class=\"card-body\">\n          <div class=\"card-title\">\n      <h2>AN<\/h2>\n    <\/div>\n    \n        <div class=\"card-description\">\n      <p>AN104001-104100<br \/>\nAN173-AN186<br \/>\nAN3-20<\/p>\n    <\/div>\n      <\/div>\n  \n  <div class=\"card-footer\">\n      <\/div>\n<\/div>\n\n\n\n<div class=\"product-card \">\n  <!-- We want to wrap image in link, if link exists -->\n        \n    <div class=\"card-body\">\n          <div class=\"card-title\">\n      <h2>MS<\/h2>\n    <\/div>\n    \n        <div class=\"card-description\">\n      <p>MS20033-46<br \/>\nMS20073<br \/>\nMS20074<br \/>\nMS9488<br \/>\nMS9489<br \/>\nMS9490<br \/>\nMS9491<br \/>\nMS9501<br \/>\nMS9584<\/p>\n    <\/div>\n      <\/div>\n  \n  <div class=\"card-footer\">\n      <\/div>\n<\/div>\n\n\n\n<div class=\"product-card \">\n  <!-- We want to wrap image in link, if link exists -->\n        \n    <div class=\"card-body\">\n          <div class=\"card-title\">\n      <h2>NAS<\/h2>\n    <\/div>\n    \n        <div class=\"card-description\">\n      <p>NAS1003-1020<br \/>\nNAS1096<br \/>\nNAS1103-1120<br \/>\nNAS1303-1320<br \/>\nNAS1801<br \/>\nNAS1802<br \/>\nNAS428<br \/>\nNAS464<br \/>\nNAS563-572<br \/>\nNAS6203-6220<br \/>\nNAS6303-6320<br \/>\nNAS6603-6620<br \/>\nNAS6703-6720<\/p>\n    <\/div>\n      <\/div>\n  \n  <div class=\"card-footer\">\n      <\/div>\n<\/div>\n<\/div>\n\n<\/div><\/div>\n\n<\/div>  <\/div>\n<\/section>\n\n\n\n<section id=\"\" class=\"section padding-vertical-md  has-background-image\" style=\"background: linear-gradient(270deg, rgba(10, 10, 10, 0.00) 0%, #0a0a0a 100%), url(https:\/\/pennaero.com\/mac-fasteners\/wp-content\/uploads\/sites\/18\/2026\/03\/6f8d17eaeae8b29d8baa7d332cec13335300ffd8-scaled.jpg) lightgray center\/cover no-repeat;\">\n  <div class=\"container layout-flex\">\n    <div class=\"acf-innerblocks-container\">\n\n<div class=\"flex-wrap flex-1-column container-width-sm\">\n  <div class=\"acf-innerblocks-container\">\n\n<h2 class=\"wp-block-heading has-white-color has-text-color has-link-color wp-elements-1\">Put Our Capabilities to Work<\/h2>\n\n\n\n<p class=\"has-white-color has-text-color has-link-color wp-elements-2 wp-block-paragraph\">Partner with MAC for aerospace hex head fasteners engineered for structural reliability and production consistency.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/pennaero.com\/mac-fasteners\/contact-us\/\">Contact Us<\/a><\/div>\n<\/div>\n\n<\/div><\/div>\n\n<\/div>  <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"template":"","class_list":["post-896","trm_product_page","type-trm_product_page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hex Head - Mac Fasteners<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pennaero.com\/mac-fasteners\/products\/hex-head\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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