50/100Pcs Electric Wire Connectors Set 4.8/6.3mm With lock Female and male Crimp Terminal Connector Brass Silver Car Speaker
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SKU: 14:350686#6.3mm(Lock)50PCS
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Female Spade Crimp Terminals — With Lock Tab, Brass, Silver Finish (4.8 mm / 6.3 mm) + Optional Insulated Sleeves
High-conductivity brass female spade terminals with a positive locking lance for secure retention on standard male tabs (4.8 mm / 0.187″ and 6.3 mm / 0.250″). Silver-tone finish, CE-declared, and available as terminals-only (50 pcs) or with matching transparent insulated sleeves (100 pcs kit). Ideal for automotive, appliances, harnesses, and general electrical DIY.
- With Lock: spring lance helps resist pull-off when properly crimped
- Brass contacts for low resistance and reliable conductivity
- Sizes: 4.8 mm (0.187″) & 6.3 mm (0.250″) female spade interfaces
- Optional sleeves: clear insulators for touch protection and splash resistance
- Durable, easy to install; compatible with most open-barrel/insulated crimp tools
Technical Specifications
| Type | Female spade crimp terminal (with lock lance) |
|---|---|
| Interface Sizes | 4.8 mm (0.187″) · 6.3 mm (0.8 mm or 6.3 mm) and choose the matching female terminal. Wire gauge support depends on the terminal barrel size—use a proper crimp tool and perform a pull test. Minor measurement/color variations may occur.
Request a Quote | Request Sample FAQsWhat tab sizes do these fit?Standard male spade tabs: 4.8 mm (0.187″) and 6.3 mm (0.250″), depending on the variant you choose.
What does “with lock” mean?A spring “lance” within the female terminal helps lock onto the male tab for improved retention when properly crimped.
Do the 50-pc packs include sleeves?No. The 50-pc option is terminals only. The 100-pc kit includes 50 terminals + 50 transparent sleeves.
Are the sleeves waterproof?They are insulating covers that add touch protection and splash resistance. For fully sealed connections, use heat-shrink or sealed terminals.
What wire gauges do these support?Gauge support varies by barrel size and crimp profile. Match the terminal to your conductor size and use the correct die; perform a pull test.
Which crimp tool should I use?A ratcheting crimp tool with the correct open-barrel/insulated die for your terminal style. Avoid pliers that can crush or cut the barrel.
Can I solder after crimping?Professional practice is crimp-only for serviceability and vibration resistance. If you solder, avoid wicking into the flex zone and add strain relief.
Are these suitable for automotive use?Yes—commonly used in harnesses, speakers, switches, and accessory power. Use sleeves or additional protection in wet/engine-bay areas.
Will these fit standard appliance spades?Most appliance connectors use 6.3 mm (0.250″) tabs. Confirm your device’s tab width before ordering.
Do they fit tinned male tabs?Yes—fit is determined by width and thickness, not plating. Ensure proper insertion and retention.
How do I install the sleeves?Crimp the terminal to the wire first, then slide the transparent sleeve over the terminal until fully seated.
What if the terminal feels loose on the tab?Use the correct size (4.8 mm vs 6.3 mm) and verify tab thickness. If still loose, replace the terminal—do not rely on deformation.
Can I use them for high-current circuits?Yes within the terminal’s rating and proper gauge selection. For sustained high current or harsh environments, consider sealed/heavy-duty terminals.
Are they nickel- or tin-plated?Silver-tone finish per supplier. Conductive base metal is brass.
Do these meet CE?Supplier CE declaration provided. For regulated applications, verify your end-system requirements.
Can I crimp without sleeves?Yes—sleeves are optional. Use heat-shrink or over-mold as needed for extra protection.
Are these compatible with quick-disconnect housings?These are standalone female spades. If you need housing-style connectors, contact us for matching series.
How should I store them?Keep dry, avoid corrosive atmospheres, and segregate sizes to prevent mix-ups on the line.
What’s included in each pack?50-pc: 50 × female spades. 100-pc: 50 × female spades + 50 × clear sleeves.
Bulk/wholesale available?Yes—contact Conversions Tech for bulk pricing, mixed sizes, or pre-crimped pigtails.
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Why Pros Buy Direct from Conversions Tech
Engineered in the USA. Our U.S.-based engineering team designs and specifies our core product lines, and every product we carry — designed in-house or built to our exact specifications by certified partner factories — is quality-verified before it ships. UL/CSA listed where required, NEC compliant.
Cross-reference savings. Direct equivalents to Burndy, Hubbell, and other OEM part numbers at up to 30% less — same specs, same certifications, without the big-brand markup.
Real technical support. Need a torque spec, die reference, or an OEM quote? You’ll speak directly with the Conversions Tech engineering desk — not a script reader — for instant answers, custom kitting, and private-label options.
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