{"id":3199243,"date":"2023-02-04T18:41:00","date_gmt":"2023-02-04T18:41:00","guid":{"rendered":"https:\/\/staging.pergolaworld.com\/product\/17-x-16-ctx-t-40-construction-lag-screws\/"},"modified":"2026-06-04T11:25:09","modified_gmt":"2026-06-04T16:25:09","slug":"17x16-ctx-t-40-construction-lag-screws","status":"publish","type":"product","link":"https:\/\/staging.pergolaworld.com\/?product=17x16-ctx-t-40-construction-lag-screws","title":{"rendered":"#17&#215;16&#8243; CTX T-40 Bronze Construction Lag Screws"},"content":{"rendered":"[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;2\/3&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text text_direction=&#8221;default&#8221;]\n<h3>#17 x 16&#8243; T-40 Construction Lag Screws<\/h3>\n<p><strong>Heavy-Duty Strength for Extreme Structural Applications<\/strong><\/p>\n<p>The Big Timber CTX\u2122 #17 x 16&#8243; Construction Lag Screws are built to handle the toughest structural demands with ease. These heat-treated, hardened screws are engineered to go beyond the strength of common lag screws, featuring deep-cutting threads for maximum hold and a triple-layer bronze coating for superior corrosion resistance. With an integrated washer head and a smooth T-40 star drive, these lag screws provide a secure, professional finish that\u2019s ready to stand up to the elements.<\/p>\n<p><strong>Key Features of Big Timber CTX\u2122 Lag Screws<\/strong><\/p>\n<ul>\n<li><strong>Triple Coating for Maximum Corrosion Resistance<\/strong><br \/>\nRated for up to 1200 hours of corrosion resistance, the triple-coated bronze finish makes these screws ACQ-compatible, ideal for both interior and exterior projects that demand durability.<\/li>\n<li><strong>Engineered for Superior Grip and Holding Power<\/strong><br \/>\nFeaturing deep, sharp-cutting threads and an aggressive knurl, these screws are designed to securely draw lumber together while reducing the chance of splitting. The six-lobe star drive offers high torque without cam-out, extending the life of your bit and making installation a breeze.<\/li>\n<li><strong>Precision Design with Washer Head and Type 17 Tip<\/strong><br \/>\nThe built-in washer head provides increased pull-through strength, while the Type 17 point offers precise starts with reduced \u201cwalking\u201d\u2014no pre-drilling required. Under-head cutting nibs allow for self-countersinking, giving you a flush, professional finish.<\/li>\n<\/ul>\n<p><strong>Perfect for Structural Projects in Challenging Environments<\/strong><br \/>\nIdeal for high-stakes applications such as log construction, timber frames, laminated beams, ledger boards, deck posts, SIP panels, and pole barns, these mountain-tested lag screws deliver reliable strength for heavy-duty projects. Certified for compliance with International Building Code and Residential Code standards, these screws are independently tested to perform.<\/p>\n<p><strong>Specifications &amp; Available Quantities<\/strong><\/p>\n<ul>\n<li><strong>Available Quantities:<\/strong> 1 piece, 50 pieces, or 250 pieces<\/li>\n<li><strong>Product Weight:<\/strong> 0.142 lb (individual), 21.59 lb (50ct. box) and 35.7 lb (bulk package)<\/li>\n<li><strong>Load Capacity:<\/strong> Offers up to 1,850 lbf in tensile strength and 1,240 lbf in shear strength, built to handle heavy loads and demanding conditions<\/li>\n<\/ul>\n<p><strong>Big Timber Warranty<\/strong><br \/>\nBig Timber guarantees these lag screws to be free from material and manufacturing defects. If a product is deemed defective, it will be replaced at no cost, though the warranty does not cover labor or installation-related costs.<\/p>\n<p><strong>Recommendation for High-Corrosion Areas<\/strong><br \/>\nFor projects within a mile of saltwater, near swimming pools, or in environments with high exposure to chemicals, Big Timber\u2019s SCTX stainless steel fasteners are recommended to provide additional corrosion protection.<\/p>\n<p>Big Timber CTX\u2122 lag screws are built for those who don\u2019t compromise on quality, giving you the reliability and strength you need to tackle any challenge.[\/vc_column_text][\/vc_column][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/3&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][image_with_animation image_url=&#8221;951&#8243; image_size=&#8221;full&#8221; animation_type=&#8221;entrance&#8221; animation=&#8221;None&#8221; animation_movement_type=&#8221;transform_y&#8221; hover_animation=&#8221;none&#8221; alignment=&#8221;&#8221; border_radius=&#8221;3px&#8221; box_shadow=&#8221;small_depth&#8221; image_loading=&#8221;default&#8221; max_width=&#8221;100%&#8221; max_width_mobile=&#8221;default&#8221;][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text text_direction=&#8221;default&#8221;]\n<h2 align=\"center\"><strong>CTX Standard Lag Screw Dimensions<\/strong><\/h2>\n<table border=\"1\" width=\"100%\" cellspacing=\"1\" cellpadding=\"1\" align=\"center\">\n<tbody>\n<tr>\n<td><\/td>\n<td>14<\/td>\n<td>15<\/td>\n<td>17<\/td>\n<\/tr>\n<tr>\n<td>Thread Diameter<\/td>\n<td>.25<\/td>\n<td>.265<\/td>\n<td>.310<\/td>\n<\/tr>\n<tr>\n<td>Head Diameter<\/td>\n<td>.54<\/td>\n<td>5\/8&#8243;<\/td>\n<td>11\/16&#8243;<\/td>\n<\/tr>\n<tr>\n<td>Shank Diameter<\/td>\n<td>.167<\/td>\n<td>.205<\/td>\n<td>.226<\/td>\n<\/tr>\n<tr>\n<td>Recess Size<\/td>\n<td>T-25<\/td>\n<td>T-30<\/td>\n<td>T-40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2 align=\"center\"><strong>Specifications<\/strong><\/h2>\n<table border=\"1\" width=\"100%\" cellspacing=\"1\" cellpadding=\"1\">\n<tbody>\n<tr>\n<td><strong>Color Family<\/strong><\/td>\n<td>Bronze<\/td>\n<td><strong>Head Style<\/strong><\/td>\n<td>Washer Head<\/td>\n<\/tr>\n<tr>\n<td><strong>Drive Style<\/strong><\/td>\n<td>Star<\/td>\n<td><strong>Included<\/strong><\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td><strong>Fastener Plating<\/strong><\/td>\n<td>Bronze<\/td>\n<td><strong>Interior\/Exterior<\/strong><\/td>\n<td>Interior, Exterior<\/td>\n<\/tr>\n<tr>\n<td><strong>Fastener Type<\/strong><\/td>\n<td>Lag Screw<\/td>\n<td><strong>Measurement Standard<\/strong><\/td>\n<td>SAE<\/td>\n<\/tr>\n<tr>\n<td><strong>Fastener\/Connector Material<\/strong><\/td>\n<td>Steel<\/td>\n<td><strong>Package Quantity<\/strong><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Features<\/strong><\/td>\n<td>ACQ Rated, Coated<\/td>\n<td><strong>Product Weight<\/strong><\/td>\n<td>1lb, 25 lbs<\/td>\n<\/tr>\n<tr>\n<td><strong>Fastener Thread Type<\/strong><\/td>\n<td>Standard<\/td>\n<td><strong>Returnable<\/strong><\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td><strong>Finish<\/strong><\/td>\n<td>Bronze<\/td>\n<td><strong>Size<\/strong><\/td>\n<td>#17<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>[vc_row type=&#8221;in_container&#8221; 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