Simpson Strong-Tie HSKP5.75X19.5 HSKP™ 5.75 in. x 19.5 in. Wood-to-Wood Heavy Seated Knife Plate Hanger

Preserve the clean aesthetic of mass timber while delivering engineered performance with the Simpson Strong-Tie® HSKP™. Designed for high-load applications, this heavy seated knife plate installs easily using Strong-Drive® SDCF Timber-CF structural screws — reducing jobsite labor and improving efficiency. ICC-ES code listed and tested for inter-story drift, the HSKP is engineered to meet demanding structural requirements. Generous fit-up tolerance allows for easier beam placement during erection, making it ideal for precision mass timber projects.

This Simpson product is designed for construction, connector, fastening, anchoring, and structural applications where dependable performance, durability, and jobsite-ready installation matter.

Features

• High capacity
• Code listed in ICC-ES ESR 2552; 1- and 2-hour fire-resistance ratings per ASTM E119
• Factory installation of connector reduces on-site labor
• Quick field connection of beam to supporting member reduces crane cycle-time
• Inclined screw hole feature reduces the overall screw count compared to horizontal screws
• HSKP offers a concealed wood-to-wood connection
• Recommended for use at beam-to-beam or beam-to-column connections in any Seismic Design Category
• Size: 5.75 in. width x 19.5 in. height
• Simpson Strong-Tie® gray-paint finish

Specifications

• ERP Part Number: HSKP5.75X19.5
• UPC: 707392022909
• GTIN: 707392022909
• Feature 01: High capacity
• Feature 02: Code listed in ICC-ES ESR 2552; 1- and 2-hour fire-resistance ratings per ASTM E119
• Feature 03: Factory installation of connector reduces on-site labor
• Feature 04: Quick field connection of beam to supporting member reduces crane cycle-time
• Feature 05: Inclined screw hole feature reduces the overall screw count compared to horizontal screws
• Feature 06: HSKP offers a concealed wood-to-wood connection
• Feature 07: Recommended for use at beam-to-beam or beam-to-column connections in any Seismic Design Category
• Feature 08: Size: 5.75 in. width x 19.5 in. height
• Feature 09: Simpson Strong-Tie® gray-paint finish
• Install With: Installs with (1) CJTPL 1/2 in. dia. steel dowel, (24) 0.290 in. x 6-1/4 in. Strong-Drive® SDCF Timber-CF screws (SDCF27614) and (10) 0.230 in. x 8-5/8 in. SDCF Timber-CF screws (SDCF22858) (fasteners not included)
• Assembled Depth - Imperial: 9
• Assembled Depth UOM - Imperial: in.
• Assembled Height - Imperial: 19.5
• Assembled Height UOM - Imperial: in.
• Assembled Width - Imperial: 5.75
• Assembled Width UOM - Imperial: in.
• Base Product ID: HSKP_Hanger
• Base Product Name: HSKP™
• Brand Name: Simpson Strong-Tie®
• Category Tree (Computed): Wood Construction Connectors > Joist Hangers > Hanger
• Color: Gray
• Country of Origin: US
• Customer Unit: Yes
• Display Unit/Measure: EA
• Finish: Simpson Strong-Tie Gray Paint
• GUID: 122896039609675213988034593865669859971
• Logo Image: https://images.salsify.com/image/upload/s--Lkh4Jm6c--/vkrqlmpfxgflsa4yytuq.png
• Material: Steel
• Measurement Unit Text: each
• MFG Name: Simpson Strong-Tie®
• Number Category Description: UPC
• Product Class: Hanger
• Prop 65 Warning: No
• Quantity: 1
• Shipping Weight: 26.45
• Short Product Name: HEAVY SEATED KNIFE PLATE 5.75X19.5
• Strongtie.com URL: https://www.strongtie.com/facemounthangers_engineeredwoodconnectors/hskp_hanger/p/hskp
• Subcategory: Wood Construction Connectors
• Subcategory 2: Joist Hangers
• Warranty PDF: https://images.salsify.com/image/upload/s--K_9ww28_--/bgqxyqo1uhaqsqcvudu7.pdf
• Brand Video: https://images.salsify.com/video/upload/s--N-SMFYx9--/wpz3sdgci9c512ppr9df.mp4
• Lumber Size Infographic: https://images.salsify.com/image/upload/s--4j6m7m95--/of77l1vzb2adrmtseor4.png