Lab Needles

Syringe Needles

If you are looking where to buy syringe needles, Hamilton Company offers the widest variety of standard syringe needles and custom lab needles in the industry. Manufactured from 304 stainless steel and with needle gauges from 10 to 34, and lengths from 0.375 to 12 inches, almost any syringe needle is possible. Multiple hub styles available including luer lock, small/large hub removable needle hubs, hat hub, and hub-less. Hamilton Company needles, as well as other laboratory products, are available for purchase directly from our website.

Precision Glass Syringes for Every Lab

The fluid path of a Hamilton glass syringe is chemically inert with stainless steel, borosilicate glass, and PTFE used for most syringes. N.I.S.T. traceable certification is available as an additional service for the majority of the syringes in our product line 

Needle Point Style Guide

Hamilton offers a variety of different needle point designs. Needle termination selection is very important to the proper function an application. Lab needles need to perform in many different environments and terminations are available in non-coring, beveled, drilled side port and more. Click to see which version is best for your application.

Needle Gauge Chart

In addition to being inert stainless steel, lab needles require proper sizing in order to function properly. The diameter of a needle is defined by its gauge. In addition to being inert stainless steel, lab needles require proper sizing in order to function properly. Hamilton company offers a wide spectrum of gauges. This index displays the internal and outer dimensions as well as the dead volume.

Needle Length Guide

Needle length is a critical consideration for every application. Each needle hub design requires a slightly different length definition. It doesn't matter if the application is utilizing lab needles for life science injection or environmental analysis of ground water, the injection needs to hit the right target. This guide illustrates how to make the different measurements.


Hamilton’s knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.

Reference Guide - Laboratory Syringes and Needles

The Syringe and Needle Reference Guide provides detailed information on Hamilton Company’s full portfolio of syringes and needles. Everything from cleaning and preventative maintenance to individual part numbers are available for review. It also includes selection charts to help you choose between syringe terminations like cemented needles and luer tips.

Instructions - Needle Cleaning Kit

Hamilton Company’s Needle Cleaning Kit contains a 70 mL bottle of Cleaning Solution Concentrate and tungsten cleaning wires in five sizes. Refer to the table below to determine the optimum size and part number of cleaning wires for your needles.

SDS - Needle Cleaning Solution

Safety data sheets (SDS) are documents that allow for the documentation and logging of the potential risks and hazards associated with a product or substance. Hamilton Company provides SDS sheets for many of it's syringe and needle parts and accessories. Download the safety data sheet for Hamilton's needle cleaning solution.

Guide - Syringe and Needle Assembly

Take a look at our useful syringe and needle assembly guide. See how to easily assemble and disassemble or lab syringes. We combine the highest quality materials with skilled craftsmanship, ensuring the highest possible performance of every precision fluid device we manufacture. With proper care and handling, the Hamilton needles will provide years of use.