Hi-lok collars are used in conjunction with hi-lok head pins to form a secure joint through the use of a the 2 threaded pieces. Designed for specific applications the new threaded hi-lok systems are easier to install and maintain with less special tooling needed. Monroe Aerospace is a stocking distributor of Aerospace and Mil-Spec hardware. We have an extensive inventory of hi-lok fasteners. Every part that we sell is in Factory new (FN) condition and we provide our company’s certificate of conformance for all parts on every order. See below for our products.

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HL75 Hi-Lok 303 Stainless Steel Collars
HL75-10A
HL75-10 Hi-Lok 303 Stainless Steel Collar
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HL77 Hi-Lok Aluminum Alloy Collars
HL77-10
5/16 Inch Pin Nominal Diameter HL77 Hi-Lok Aluminum Alloy Collar
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HL78 Hi-Lok A-286 High Temperature Alloy Collars
HL78-8
1/4 Inch Pin Nominal Diameter HL78 Hi-Lok A-286 High Temperature Alloy Collar
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HL82 Hi-Lok Aluminum Collars
HL82-5AW
5/32 Inch Pin Nominal Diameter HL82 Hi-Lok Aluminum Collar
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HL82 Hi-Lok Aluminum Collars
HL82-10A
5/16 Inch Pin Nominal Diameter HL82 Hi-Lok Aluminum Collar
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HL84 Hi-Lok Aluminum Alloy Collars
HL84-10
11/32 Inch Pin Nominal Diameter HL84 Hi-Lok Aluminum Alloy Collar
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HL93 Hi-Lok 303 Stainless Steel Collars
HL93-10
11/32 Inch Pin Nominal Diameter HL93 Hi-Lok 303 Stainless Steel Collar
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HL79 Hi-Lok Aluminum Alloy Collars
HL79-5
5/32 Inch Pin Nominal Diameter HL79 Hi-Lok Aluminum Alloy Collar
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HLT77
HLT77-8
Hi-Lok/Hi-Tigue Collar - HLT77-8
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HLT77
HLT77-6
Hi-Lok/Hi-Tigue Collar - HLT77-6
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nas1080
NAS1080-06
Collar - NAS1080-06
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nas1080
NAS1080C06
Collar - NAS1080C06
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nas1080
NAS1080C08
Collar - NAS1080C08
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nas1080
NAS1080D06
Collar - NAS1080D06
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nas1080
NAS1080E08
Collar - NAS1080E08
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nas1080
NAS1080R05
Collar - NAS1080R05
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nas1080
NAS1080R06
Collar - NAS1080R06
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nas1080
NAS1080-05
Collar - NAS1080-05
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nas1080
NAS1080G06
Collar - NAS1080G06
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po-locks-collars
BACC30BL6
Collar - BACC30BL6
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HL70
HL70-10
Hi-Lok Collar - HL70-10
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HL279-6
HL279-6
Collar - HL279-6
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HL70
HL70-5
Hi-Lok Collar - HL70-5
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po-locks-collars
HL287-6
Hi-Lok Collar - HL287-6
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HL70
HL70-8
Hi-Lok Collar - HL70-8
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HL70
HL70-6
Hi-Lok Collar - HL70-6
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HL75
HL75-5A
Hi-Lok Collar - HL75-5A
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HL75W
HL75-6W
Hi-Lok Washer - HL75-6W
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HL75
HL75-8A
Hi-Lok Collar - HL75-8A
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HL77
HL77-5
Hi-Lok Collar - HL77-5
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HL78
HL78-5
Hi-Lok Collar - HL78-5
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HL79
HL79-10
Hi-Lok Collar - HL79-10
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HL78
HL78-6
Hi-Lok Collar - HL78-6
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HL79
HL79-8
Hi-Lok Collar - HL79-8
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HL82
HL82-5A
Hi-Lok Collar - HL82-5A
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HL82
HL82-6A
Hi-Lok Collar - HL82-6A
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HL82PBW
HL82-6PBW
Hi-Lok Washer - HL82-6PBW
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HL70
HL70TW5
Hi-Lok Collar/Washer Combo - HL70TW5
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HL84
HL84-6
Hi-Lok Collar - HL84-6
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HL70
HL70TW6
Hi-Lok Collar/Washer Combo - HL70TW6
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HL84
HL84-8
Hi-Lok Collar - HL84-8
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HL75
HL75-6A
Hi-Lok Collar - HL75-6A
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HL75W
HL75-5W
Hi-Lok Washer - HL75-5W
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HL86
HL86-5
Hi-Lok Collar - HL86-5
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HL86
HL86PB6
Hi-Lok Collar - HL86PB6
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HL86
HL86-6
Hi-Lok Collar - HL86-6
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HL86
HL86-8
Hi-Lok Collar - HL86-8
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HL86
HL86-10
Hi-Lok Collar - HL86-10
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