Fixpal Rivet, a supplier of precision-engineered blind fastening solutions, today announced the expansion of its stainless steel monobolt rivet line, also known as outlock rivets, to serve manufacturers requiring high-strength structural connections in corrosive environments. The rivets are now available in 304 and 316 stainless steel grades for applications spanning marine, automotive, and heavy equipment assembly.
What Is a Monobolt Rivet?
The monobolt rivet is a structural blind fastener distinguished by its internal mechanical locking mechanism. During installation, a specialized nose tip cuts into the mandrel head and folds material into a ledge within the rivet body, creating a permanent lock that prevents the stem from loosening after the break point. This locked-stem design delivers shear and tensile strength far exceeding conventional blind rivets, along with superior vibration resistance—a critical requirement in dynamic-load applications.
The outlock rivet designation refers to the external locking configuration: the stem material is mechanically locked into the rivet head flange during installation. This is in contrast to interlock (inner lock) rivets, which use an internal locking structure and can be installed with standard rivet guns. Outlock rivets typically require a matching specialized rivet gun with a cutting ring anvil.
Product page: Stainless Steel Monobolt Rivets
Stainless Steel Construction for Demanding Environments
Fixpal Rivet‘s stainless steel monobolt rivets are manufactured with both body and mandrel in stainless steel, available in 304 (A2) and 316 (A4) grades. The 316 grade contains molybdenum, which provides enhanced resistance to pitting and crevice corrosion—making it particularly suitable for marine and hostile environments where salt spray and chemical exposure are present.
The all-stainless construction ensures that the rivet delivers consistent corrosion resistance across the entire joint, without the galvanic mismatch concerns that can arise with mixed-material fasteners. These rivets are suited for direct exposure to moisture, washdown, and outdoor weathering.
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Structural Performance and Sealing
Stainless steel monobolt rivets provide:
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High shear and tensile strength for load-bearing structural joints
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Multi-grip capability, accommodating a range of material thicknesses with a single rivet size
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Excellent hole fill, compensating for irregular, oversized, or misaligned holes
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Fully sealed joints with the locked stem preventing moisture ingress
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Visible lock for quick and easy quality inspection
Available diameters include 3/16-inch (4.8mm) and 1/4-inch (6.4mm), with grip ranges spanning from approximately 1.6mm to 15.9mm depending on configuration.
Product page: Outlock Rivets Catalog
Application Areas
Primary applications for stainless steel monobolt rivets include:
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Marine and offshore — deck hardware, hull fittings, dock equipment, coastal structures
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Automotive and commercial vehicles — chassis components, body panel assembly, battery enclosures
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Heavy machinery — structural frame assembly, vibration-prone joints, equipment enclosures
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Construction and infrastructure — metal roofing, facade panels, HVAC ducting, steel framing
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Industrial equipment — cabinets and enclosures, domestic appliances, heating and ventilating systems
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Supply and Support
Fixpal Rivet supplies stainless steel monobolt rivets with consistent dimensional tolerances and verified mechanical performance. Procurement teams can request samples for evaluation and access production-scale volumes with competitive lead times. Technical support is available to assist with rivet selection, grip range calculation, and installation tool compatibility.
Product page: High Strength Rivets Catalog
About Fixpal Rivet
Fixpal Rivet specializes in the supply of blind rivets and structural fastening solutions for industrial, automotive, marine, and construction applications. The company focuses on delivering consistent product quality, technical application support, and reliable lead times to manufacturers and distributors worldwide.
Contact:
sales@fixpalrivet.com
+86 152 2699 6368
Note: Installation of outlock monobolt rivets requires a compatible specialized rivet gun with cutting ring anvil. Customers should verify tool compatibility and application suitability before production use.
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Post time: Nov-10-2026
