FCH News

5/16 Security Screws, Steel

Security Screws, also known as Tamper-Resistant Screws, can be either machine screw style or self-tapping style, but they have a unique drive-style requires a special tool in order to tighten or loosen.

103 results, (click on any line for more information)

Search Results Sponsored by Loss Prevention Fasteners, your source for Tamper-Proof Screws. For more results, visit   www.LossPreventionFasteners.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 7/8hex washer bb blkinquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16 x 2 x 5u-boltinquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3/4t-groove zinquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 1t-grooveinquire
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Set ScrewILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Yellow5/16-18 x 5/16cup point hex socket set tamper proof (pin) & yellow5000
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Set ScrewILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 5/16cup point hex socket set with tamper proof pininquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16 x 5/16hex-pin setscinquire
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Set ScrewILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3/8cup point tamper proof (pin) hex socket setinquire
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JET FITTINGCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 1/2cap screw button socket hex tamper proof 5/16-18x1/2 alloy steel zinc plated1200
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-24 x 1/2bttn 6-lobe w/pin 300 ser21,088
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-24 x 1/2bttn 6-lobe w/pin50,081
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-24 x 1/2torx-pin bttn zninquire
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 1/25/16-18 x 1/2 flat socket caps hardened tamper resistant2900
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 1/25/16-18 x 1/2 socket cap hardened tamper resistant1700
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Setko FasILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1/25/16-18x1/2 alloy button head hex socket security pin cap screw100
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Set ScrewILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 5/8button tamper proof socket capinquire
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 5/85/16-18 x 5/8 socket cap hardened tamper resistant1800
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 5/85/16-18 x 5/8 button socket caps hardened tamper resistant400
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 5/85/16-18 x 5/8 flat socket caps hardened tamper resistant1500
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Set ScrewILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3/4button tamper proof (pin) socket capinquire
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 3/45/16x3/4 hex-pin set screw3,232
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 3/45/16-18 x 3/4 truss hd penta-plus4
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 3/45/16-18x3/4 bh tam-6lobe m/sss4.5
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-24 x 3/4bttn 6-lobe w/pin 300 ser5,670
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KomarARTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 3/4 torx (tamper proof) button head screw alloy st4320
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3/4t-groove zinquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3/40open eye bkinquire
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 3/45/16-18 x 3/4 button socket caps hardened tamper resistant2655
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 3/45/16-18 x 3/4 flat socket caps hardened tamper resistant500
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Setko FasILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 3/45/16-18x3/4 alloy button head hex socket security pin cap screw100
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x .8405/16-18x.840 rh key-rex m/s alloy dog{90qu3-37fe}200
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 7/8hex washer bb blkinquire
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 15/16-18x 1 1/2 bh key-rex m/s1,435
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 15/16-18x1 raptor{75nx4475
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-24 x 15/16-24x1 bh hex-pin m/s n/f alloy cad{53060500583}1,300
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SRFALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 15/16-18 x 1 bh socket tamperproof 31C100TBSY-
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-24 x 1bttn 6-lobe w/pin300
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 1t-grooveinquire
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 15/16-18 x 1 button hd tamper proof alloy800
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 15/16-18 x 1 flat socket caps hardened tamper resistant500
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18x1-1/4bh penta-plus m/s521
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1 1/45/16-18x1 1/4 raptor{75nx4-769
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SRFALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1 1/45/16-18 x 1 1/4 bh socket tamperproof 31C125TBSY-
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-24 x 1 1/4bttn 6-lobe w/pin240
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 1 1/45/16-18 x 1 1/4 socket cap hardened tamper resistant6100
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 1 1/45/16-18 x 1 1/4 flat socket caps hardened tamper resistant100
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ExpressCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1 1/25/16-18x1-1/2 tamper proof torx button head machine screw alloy400
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1 1/25/16-18x1-1/2 bh penta-plus m/1,581
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ASMCILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1 1/2(ft) coarse socket cap tamper resistant hex pin-in75
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HBBOLTCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 1 1/2one way truss lag blk 151470 1514701,200
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 1 1/25/16x1 1/2 bh key rex acme 10tpi shvd point alloy blk{x313bc}0.15
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 1 1/25/16 x 1 1/2 bh key rex acmebz900
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 1 1/25/16-18 x11/2 skt tam-torq z500
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IRFNJTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-9 x 1 1/25/16-9x1 1/2 round one wy type-a stl pln kioneway516x111,324
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MidStatesMITamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 1 1/2one-way truss m/s znc4
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1 1/2spanner dr flat ms25
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 1 1/2t-grooveinquire
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 1 1/25/16-18 x 1 1/2 flat socket caps hardened tamper resistant100
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16-18 x 1 1/25/16-18 x 1 1/2 socket cap hardened tamper resistant1300
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 1 3/45/16-18 x 1-3/4 fh penta-plus165
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelCadmium5/16-18 x 1 3/4fl 6-lobe w/pin cad plt341
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BHAMALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-24 x 1 3/4bttn 6-lobe w/pin77
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AmericanNYTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 2one way slotted truss pl100
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 25/16-18x2 raptor{75nx4-37fe}exclusive01
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LippinCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 25/16 x 2 one-way security screw black oxide500
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ISSCOMOTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 2mach one way slotted round z/p400
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HBBOLTCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 2round t/s lag one way blk343
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16 x 2 x 5u-boltinquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 2t-grooveinquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 2torx-pin bttninquire
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 2torx-pin flatinquire
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 2 1/45/16-18x2-1/4 bh penta-plus m/655
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 2 1/25/16-18x2-1/2 bh penta-plus m1,085
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 2 1/25/16-18x2 1/2 bh keyed-lok m/s62
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ISSCOMOTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 2 1/2mach one way slotted round z/p500
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 2 3/45/16-18x2-3/4 bh penta-plus946
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 2 3/45/16-18x2 3/4 raptor hd penta-plus828
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AbabaCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 35/16 x 3 one-way truss lag stl pln400
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AbabaCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 35/16 x 3 one-way truss lag stl pln100
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RCFastAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 3truss one-way tmprprf lag bolt stl black ox4800
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AmericanNYTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3one way truss pl100
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18 x 35/16-18x3 bh penta-plus m/s51
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 35/16 x 3 bh key rex acme thr19
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LippinCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 35/16 x 3 one-way security screw black oxide300
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HBBOLTCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 3one way l/b213
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UltraFastWATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3torx-pin bttninquire
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ExpressCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 3 1/25/16-18x3-1/2 tamperproof one-way round head machine screw zinc38330
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 3 1/25/16 x 3 1/2 bh key rex acme800
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 3 1/25/16 x 3 1/2 bh key rex acme45
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 3 1/25/16 x 3 1/2 bh key rex acme thread 10 tpi alloy{x31-3as}0.36
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Bryce FastenerAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 3 3/45/16x3-3/4 bh key rex acme 10tpi shvd point alloy blk{x313bc}0.15
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AbabaCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 45/16 x 4 one-way truss lag stl pln262
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AbabaCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 45/16 x 4 one-way truss lag stl pln25
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RCFastAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 4truss one-way tmprprf lag bolt stl black ox2000
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LippinCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 45/16 x 4 one-way security screw black oxide300
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JacksonMSTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Black5/16 x 4truss (#16) one-way slotted burglar bartamper resistant tapping black1413
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ZAL INDUSCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16 x 45/16 x 4 one-way lag screw almond head pltd1,000
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HBBOLTCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 4one way l/b black186
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ISSCOMOTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16-18 x 4 1/2mach 1way slotted button z/p100
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AbabaCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16 x 55/16 x 5 one-way truss lag stl pln100
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RCFastAZTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 5truss one-way tmprprf lag bolt stl black ox400
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LippinCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelBlack Oxide5/16 x 55/16 x 5 one-way security screw black oxide444
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ZAL INDUSCATamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelZinc/Clear5/16 x 65/16 x 6 one-way lag screw pltd500
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JacksonMSTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/165/16 bit hex tamperproof7
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/165/16 short arm key tamperproof157
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BRIGHBESTILTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/165/16 hex key short arm tamper resistant15829
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THRDFASTALTamper-Proof Security Screw (Ultra-Lok, Penta-Plus, etc.)SteelPlain5/16-18tamper proof nut55
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